diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-05-26 10:32:47 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-05-26 10:32:47 -0700 |
commit | cc3c470ae4ad758b8ddad825ab199f7eaa8b0a9e (patch) | |
tree | 779e3dc27a1f4d1468bad2ea5cbfca28c64cf1cd /drivers/soc/imx | |
parent | ae862183285cbb2ef9032770d98ffa9becffe9d5 (diff) | |
parent | d4a3b442335b0a9476248c5d6dc07f6f8580a9ca (diff) | |
download | linux-cc3c470ae4ad758b8ddad825ab199f7eaa8b0a9e.tar.gz linux-cc3c470ae4ad758b8ddad825ab199f7eaa8b0a9e.tar.bz2 linux-cc3c470ae4ad758b8ddad825ab199f7eaa8b0a9e.zip |
Merge tag 'arm-drivers-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM driver updates from Arnd Bergmann:
"There are minor updates to SoC specific drivers for chips by Rockchip,
Samsung, NVIDIA, TI, NXP, i.MX, Qualcomm, and Broadcom.
Noteworthy driver changes include:
- Several conversions of DT bindings to yaml format.
- Renesas adds driver support for R-Car V4H, RZ/V2M and RZ/G2UL SoCs.
- Qualcomm adds a bus driver for the SSC (Snapdragon Sensor Core),
and support for more chips in the RPMh power domains and the
soc-id.
- NXP has a new driver for the HDMI blk-ctrl on i.MX8MP.
- Apple M1 gains support for the on-chip NVMe controller, making it
possible to finally use the internal disks. This also includes SoC
drivers for their RTKit IPC and for the SART DMA address filter.
For other subsystems that merge their drivers through the SoC tree, we
have
- Firmware drivers for the ARM firmware stack including TEE, OP-TEE,
SCMI and FF-A get a number of smaller updates and cleanups. OP-TEE
now has a cache for firmware argument structures as an
optimization, and SCMI now supports the 3.1 version of the
specification.
- Reset controller updates to Amlogic, ASpeed, Renesas and ACPI
drivers
- Memory controller updates for Tegra, and a few updates for other
platforms"
* tag 'arm-drivers-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (159 commits)
memory: tegra: Add MC error logging on Tegra186 onward
memory: tegra: Add memory controller channels support
memory: tegra: Add APE memory clients for Tegra234
memory: tegra: Add Tegra234 support
nvme-apple: fix sparse endianess warnings
soc/tegra: pmc: Document core domain fields
soc: qcom: pdr: use static for servreg_* variables
soc: imx: fix semicolon.cocci warnings
soc: renesas: R-Car V3U is R-Car Gen4
soc: imx: add i.MX8MP HDMI blk-ctrl
soc: imx: imx8m-blk-ctrl: Add i.MX8MP media blk-ctrl
soc: imx: add i.MX8MP HSIO blk-ctrl
soc: imx: imx8m-blk-ctrl: set power device name
soc: qcom: llcc: Add sc8180x and sc8280xp configurations
dt-bindings: arm: msm: Add sc8180x and sc8280xp LLCC compatibles
soc/tegra: pmc: Select REGMAP
dt-bindings: reset: st,sti-powerdown: Convert to yaml
dt-bindings: reset: st,sti-picophyreset: Convert to yaml
dt-bindings: reset: socfpga: Convert to yaml
dt-bindings: reset: snps,axs10x-reset: Convert to yaml
...
Diffstat (limited to 'drivers/soc/imx')
-rw-r--r-- | drivers/soc/imx/Makefile | 1 | ||||
-rw-r--r-- | drivers/soc/imx/gpcv2.c | 430 | ||||
-rw-r--r-- | drivers/soc/imx/imx8m-blk-ctrl.c | 124 | ||||
-rw-r--r-- | drivers/soc/imx/imx8mp-blk-ctrl.c | 696 |
4 files changed, 1237 insertions, 14 deletions
diff --git a/drivers/soc/imx/Makefile b/drivers/soc/imx/Makefile index 8a707077914c..63cd29f6d4d2 100644 --- a/drivers/soc/imx/Makefile +++ b/drivers/soc/imx/Makefile @@ -6,3 +6,4 @@ obj-$(CONFIG_HAVE_IMX_GPC) += gpc.o obj-$(CONFIG_IMX_GPCV2_PM_DOMAINS) += gpcv2.o obj-$(CONFIG_SOC_IMX8M) += soc-imx8m.o obj-$(CONFIG_SOC_IMX8M) += imx8m-blk-ctrl.o +obj-$(CONFIG_SOC_IMX8M) += imx8mp-blk-ctrl.o diff --git a/drivers/soc/imx/gpcv2.c b/drivers/soc/imx/gpcv2.c index 3cb123016b3e..85aa86e1338a 100644 --- a/drivers/soc/imx/gpcv2.c +++ b/drivers/soc/imx/gpcv2.c @@ -21,10 +21,12 @@ #include <dt-bindings/power/imx8mq-power.h> #include <dt-bindings/power/imx8mm-power.h> #include <dt-bindings/power/imx8mn-power.h> +#include <dt-bindings/power/imx8mp-power.h> #define GPC_LPCR_A_CORE_BSC 0x000 #define GPC_PGC_CPU_MAPPING 0x0ec +#define IMX8MP_GPC_PGC_CPU_MAPPING 0x1cc #define IMX7_USB_HSIC_PHY_A_CORE_DOMAIN BIT(6) #define IMX7_USB_OTG2_PHY_A_CORE_DOMAIN BIT(5) @@ -65,6 +67,29 @@ #define IMX8MN_OTG1_A53_DOMAIN BIT(4) #define IMX8MN_MIPI_A53_DOMAIN BIT(2) +#define IMX8MP_MEDIA_ISPDWP_A53_DOMAIN BIT(20) +#define IMX8MP_HSIOMIX_A53_DOMAIN BIT(19) +#define IMX8MP_MIPI_PHY2_A53_DOMAIN BIT(18) +#define IMX8MP_HDMI_PHY_A53_DOMAIN BIT(17) +#define IMX8MP_HDMIMIX_A53_DOMAIN BIT(16) +#define IMX8MP_VPU_VC8000E_A53_DOMAIN BIT(15) +#define IMX8MP_VPU_G2_A53_DOMAIN BIT(14) +#define IMX8MP_VPU_G1_A53_DOMAIN BIT(13) +#define IMX8MP_MEDIAMIX_A53_DOMAIN BIT(12) +#define IMX8MP_GPU3D_A53_DOMAIN BIT(11) +#define IMX8MP_VPUMIX_A53_DOMAIN BIT(10) +#define IMX8MP_GPUMIX_A53_DOMAIN BIT(9) +#define IMX8MP_GPU2D_A53_DOMAIN BIT(8) +#define IMX8MP_AUDIOMIX_A53_DOMAIN BIT(7) +#define IMX8MP_MLMIX_A53_DOMAIN BIT(6) +#define IMX8MP_USB2_PHY_A53_DOMAIN BIT(5) +#define IMX8MP_USB1_PHY_A53_DOMAIN BIT(4) +#define IMX8MP_PCIE_PHY_A53_DOMAIN BIT(3) +#define IMX8MP_MIPI_PHY1_A53_DOMAIN BIT(2) + +#define IMX8MP_GPC_PU_PGC_SW_PUP_REQ 0x0d8 +#define IMX8MP_GPC_PU_PGC_SW_PDN_REQ 0x0e4 + #define GPC_PU_PGC_SW_PUP_REQ 0x0f8 #define GPC_PU_PGC_SW_PDN_REQ 0x104 @@ -107,8 +132,30 @@ #define IMX8MN_OTG1_SW_Pxx_REQ BIT(2) #define IMX8MN_MIPI_SW_Pxx_REQ BIT(0) +#define IMX8MP_DDRMIX_Pxx_REQ BIT(19) +#define IMX8MP_MEDIA_ISP_DWP_Pxx_REQ BIT(18) +#define IMX8MP_HSIOMIX_Pxx_REQ BIT(17) +#define IMX8MP_MIPI_PHY2_Pxx_REQ BIT(16) +#define IMX8MP_HDMI_PHY_Pxx_REQ BIT(15) +#define IMX8MP_HDMIMIX_Pxx_REQ BIT(14) +#define IMX8MP_VPU_VC8K_Pxx_REQ BIT(13) +#define IMX8MP_VPU_G2_Pxx_REQ BIT(12) +#define IMX8MP_VPU_G1_Pxx_REQ BIT(11) +#define IMX8MP_MEDIMIX_Pxx_REQ BIT(10) +#define IMX8MP_GPU_3D_Pxx_REQ BIT(9) +#define IMX8MP_VPU_MIX_SHARE_LOGIC_Pxx_REQ BIT(8) +#define IMX8MP_GPU_SHARE_LOGIC_Pxx_REQ BIT(7) +#define IMX8MP_GPU_2D_Pxx_REQ BIT(6) +#define IMX8MP_AUDIOMIX_Pxx_REQ BIT(5) +#define IMX8MP_MLMIX_Pxx_REQ BIT(4) +#define IMX8MP_USB2_PHY_Pxx_REQ BIT(3) +#define IMX8MP_USB1_PHY_Pxx_REQ BIT(2) +#define IMX8MP_PCIE_PHY_SW_Pxx_REQ BIT(1) +#define IMX8MP_MIPI_PHY1_SW_Pxx_REQ BIT(0) + #define GPC_M4_PU_PDN_FLG 0x1bc +#define IMX8MP_GPC_PU_PWRHSK 0x190 #define GPC_PU_PWRHSK 0x1fc #define IMX8M_GPU_HSK_PWRDNACKN BIT(26) @@ -118,7 +165,6 @@ #define IMX8M_VPU_HSK_PWRDNREQN BIT(5) #define IMX8M_DISP_HSK_PWRDNREQN BIT(4) - #define IMX8MM_GPUMIX_HSK_PWRDNACKN BIT(29) #define IMX8MM_GPU_HSK_PWRDNACKN (BIT(27) | BIT(28)) #define IMX8MM_VPUMIX_HSK_PWRDNACKN BIT(26) @@ -137,6 +183,21 @@ #define IMX8MN_DISPMIX_HSK_PWRDNREQN BIT(7) #define IMX8MN_HSIO_HSK_PWRDNREQN BIT(5) +#define IMX8MP_MEDIAMIX_PWRDNACKN BIT(30) +#define IMX8MP_HDMIMIX_PWRDNACKN BIT(29) +#define IMX8MP_HSIOMIX_PWRDNACKN BIT(28) +#define IMX8MP_VPUMIX_PWRDNACKN BIT(26) +#define IMX8MP_GPUMIX_PWRDNACKN BIT(25) +#define IMX8MP_MLMIX_PWRDNACKN (BIT(23) | BIT(24)) +#define IMX8MP_AUDIOMIX_PWRDNACKN (BIT(20) | BIT(31)) +#define IMX8MP_MEDIAMIX_PWRDNREQN BIT(14) +#define IMX8MP_HDMIMIX_PWRDNREQN BIT(13) +#define IMX8MP_HSIOMIX_PWRDNREQN BIT(12) +#define IMX8MP_VPUMIX_PWRDNREQN BIT(10) +#define IMX8MP_GPUMIX_PWRDNREQN BIT(9) +#define IMX8MP_MLMIX_PWRDNREQN (BIT(7) | BIT(8)) +#define IMX8MP_AUDIOMIX_PWRDNREQN (BIT(4) | BIT(15)) + /* * The PGC offset values in Reference Manual * (Rev. 1, 01/2018 and the older ones) GPC chapter's @@ -179,14 +240,44 @@ #define IMX8MN_PGC_GPUMIX 23 #define IMX8MN_PGC_DISPMIX 26 +#define IMX8MP_PGC_NOC 9 +#define IMX8MP_PGC_MIPI1 12 +#define IMX8MP_PGC_PCIE 13 +#define IMX8MP_PGC_USB1 14 +#define IMX8MP_PGC_USB2 15 +#define IMX8MP_PGC_MLMIX 16 +#define IMX8MP_PGC_AUDIOMIX 17 +#define IMX8MP_PGC_GPU2D 18 +#define IMX8MP_PGC_GPUMIX 19 +#define IMX8MP_PGC_VPUMIX 20 +#define IMX8MP_PGC_GPU3D 21 +#define IMX8MP_PGC_MEDIAMIX 22 +#define IMX8MP_PGC_VPU_G1 23 +#define IMX8MP_PGC_VPU_G2 24 +#define IMX8MP_PGC_VPU_VC8000E 25 +#define IMX8MP_PGC_HDMIMIX 26 +#define IMX8MP_PGC_HDMI 27 +#define IMX8MP_PGC_MIPI2 28 +#define IMX8MP_PGC_HSIOMIX 29 +#define IMX8MP_PGC_MEDIA_ISP_DWP 30 +#define IMX8MP_PGC_DDRMIX 31 + #define GPC_PGC_CTRL(n) (0x800 + (n) * 0x40) #define GPC_PGC_SR(n) (GPC_PGC_CTRL(n) + 0xc) #define GPC_PGC_CTRL_PCR BIT(0) +struct imx_pgc_regs { + u16 map; + u16 pup; + u16 pdn; + u16 hsk; +}; + struct imx_pgc_domain { struct generic_pm_domain genpd; struct regmap *regmap; + const struct imx_pgc_regs *regs; struct regulator *regulator; struct reset_control *reset; struct clk_bulk_data *clks; @@ -204,12 +295,16 @@ struct imx_pgc_domain { const int voltage; const bool keep_clocks; struct device *dev; + + unsigned int pgc_sw_pup_reg; + unsigned int pgc_sw_pdn_reg; }; struct imx_pgc_domain_data { const struct imx_pgc_domain *domains; size_t domains_num; const struct regmap_access_table *reg_access_table; + const struct imx_pgc_regs *pgc_regs; }; static inline struct imx_pgc_domain * @@ -249,14 +344,14 @@ static int imx_pgc_power_up(struct generic_pm_domain *genpd) if (domain->bits.pxx) { /* request the domain to power up */ - regmap_update_bits(domain->regmap, GPC_PU_PGC_SW_PUP_REQ, + regmap_update_bits(domain->regmap, domain->regs->pup, domain->bits.pxx, domain->bits.pxx); /* * As per "5.5.9.4 Example Code 4" in IMX7DRM.pdf wait * for PUP_REQ/PDN_REQ bit to be cleared */ ret = regmap_read_poll_timeout(domain->regmap, - GPC_PU_PGC_SW_PUP_REQ, reg_val, + domain->regs->pup, reg_val, !(reg_val & domain->bits.pxx), 0, USEC_PER_MSEC); if (ret) { @@ -278,11 +373,11 @@ static int imx_pgc_power_up(struct generic_pm_domain *genpd) /* request the ADB400 to power up */ if (domain->bits.hskreq) { - regmap_update_bits(domain->regmap, GPC_PU_PWRHSK, + regmap_update_bits(domain->regmap, domain->regs->hsk, domain->bits.hskreq, domain->bits.hskreq); /* - * ret = regmap_read_poll_timeout(domain->regmap, GPC_PU_PWRHSK, reg_val, + * ret = regmap_read_poll_timeout(domain->regmap, domain->regs->hsk, reg_val, * (reg_val & domain->bits.hskack), 0, * USEC_PER_MSEC); * Technically we need the commented code to wait handshake. But that needs @@ -329,10 +424,10 @@ static int imx_pgc_power_down(struct generic_pm_domain *genpd) /* request the ADB400 to power down */ if (domain->bits.hskreq) { - regmap_clear_bits(domain->regmap, GPC_PU_PWRHSK, + regmap_clear_bits(domain->regmap, domain->regs->hsk, domain->bits.hskreq); - ret = regmap_read_poll_timeout(domain->regmap, GPC_PU_PWRHSK, + ret = regmap_read_poll_timeout(domain->regmap, domain->regs->hsk, reg_val, !(reg_val & domain->bits.hskack), 0, USEC_PER_MSEC); @@ -350,14 +445,14 @@ static int imx_pgc_power_down(struct generic_pm_domain *genpd) } /* request the domain to power down */ - regmap_update_bits(domain->regmap, GPC_PU_PGC_SW_PDN_REQ, + regmap_update_bits(domain->regmap, domain->regs->pdn, domain->bits.pxx, domain->bits.pxx); /* * As per "5.5.9.4 Example Code 4" in IMX7DRM.pdf wait * for PUP_REQ/PDN_REQ bit to be cleared */ ret = regmap_read_poll_timeout(domain->regmap, - GPC_PU_PGC_SW_PDN_REQ, reg_val, + domain->regs->pdn, reg_val, !(reg_val & domain->bits.pxx), 0, USEC_PER_MSEC); if (ret) { @@ -442,10 +537,18 @@ static const struct regmap_access_table imx7_access_table = { .n_yes_ranges = ARRAY_SIZE(imx7_yes_ranges), }; +static const struct imx_pgc_regs imx7_pgc_regs = { + .map = GPC_PGC_CPU_MAPPING, + .pup = GPC_PU_PGC_SW_PUP_REQ, + .pdn = GPC_PU_PGC_SW_PDN_REQ, + .hsk = GPC_PU_PWRHSK, +}; + static const struct imx_pgc_domain_data imx7_pgc_domain_data = { .domains = imx7_pgc_domains, .domains_num = ARRAY_SIZE(imx7_pgc_domains), .reg_access_table = &imx7_access_table, + .pgc_regs = &imx7_pgc_regs, }; static const struct imx_pgc_domain imx8m_pgc_domains[] = { @@ -614,6 +717,7 @@ static const struct imx_pgc_domain_data imx8m_pgc_domain_data = { .domains = imx8m_pgc_domains, .domains_num = ARRAY_SIZE(imx8m_pgc_domains), .reg_access_table = &imx8m_access_table, + .pgc_regs = &imx7_pgc_regs, }; static const struct imx_pgc_domain imx8mm_pgc_domains[] = { @@ -804,6 +908,304 @@ static const struct imx_pgc_domain_data imx8mm_pgc_domain_data = { .domains = imx8mm_pgc_domains, .domains_num = ARRAY_SIZE(imx8mm_pgc_domains), .reg_access_table = &imx8mm_access_table, + .pgc_regs = &imx7_pgc_regs, +}; + +static const struct imx_pgc_domain imx8mp_pgc_domains[] = { + [IMX8MP_POWER_DOMAIN_MIPI_PHY1] = { + .genpd = { + .name = "mipi-phy1", + }, + .bits = { + .pxx = IMX8MP_MIPI_PHY1_SW_Pxx_REQ, + .map = IMX8MP_MIPI_PHY1_A53_DOMAIN, + }, + .pgc = BIT(IMX8MP_PGC_MIPI1), + }, + + [IMX8MP_POWER_DOMAIN_PCIE_PHY] = { + .genpd = { + .name = "pcie-phy1", + }, + .bits = { + .pxx = IMX8MP_PCIE_PHY_SW_Pxx_REQ, + .map = IMX8MP_PCIE_PHY_A53_DOMAIN, + }, + .pgc = BIT(IMX8MP_PGC_PCIE), + }, + + [IMX8MP_POWER_DOMAIN_USB1_PHY] = { + .genpd = { + .name = "usb-otg1", + }, + .bits = { + .pxx = IMX8MP_USB1_PHY_Pxx_REQ, + .map = IMX8MP_USB1_PHY_A53_DOMAIN, + }, + .pgc = BIT(IMX8MP_PGC_USB1), + }, + + [IMX8MP_POWER_DOMAIN_USB2_PHY] = { + .genpd = { + .name = "usb-otg2", + }, + .bits = { + .pxx = IMX8MP_USB2_PHY_Pxx_REQ, + .map = IMX8MP_USB2_PHY_A53_DOMAIN, + }, + .pgc = BIT(IMX8MP_PGC_USB2), + }, + + [IMX8MP_POWER_DOMAIN_MLMIX] = { + .genpd = { + .name = "mlmix", + }, + .bits = { + .pxx = IMX8MP_MLMIX_Pxx_REQ, + .map = IMX8MP_MLMIX_A53_DOMAIN, + .hskreq = IMX8MP_MLMIX_PWRDNREQN, + .hskack = IMX8MP_MLMIX_PWRDNACKN, + }, + .pgc = BIT(IMX8MP_PGC_MLMIX), + .keep_clocks = true, + }, + + [IMX8MP_POWER_DOMAIN_AUDIOMIX] = { + .genpd = { + .name = "audiomix", + }, + .bits = { + .pxx = IMX8MP_AUDIOMIX_Pxx_REQ, + .map = IMX8MP_AUDIOMIX_A53_DOMAIN, + .hskreq = IMX8MP_AUDIOMIX_PWRDNREQN, + .hskack = IMX8MP_AUDIOMIX_PWRDNACKN, + }, + .pgc = BIT(IMX8MP_PGC_AUDIOMIX), + .keep_clocks = true, + }, + + [IMX8MP_POWER_DOMAIN_GPU2D] = { + .genpd = { + .name = "gpu2d", + }, + .bits = { + .pxx = IMX8MP_GPU_2D_Pxx_REQ, + .map = IMX8MP_GPU2D_A53_DOMAIN, + }, + .pgc = BIT(IMX8MP_PGC_GPU2D), + }, + + [IMX8MP_POWER_DOMAIN_GPUMIX] = { + .genpd = { + .name = "gpumix", + }, + .bits = { + .pxx = IMX8MP_GPU_SHARE_LOGIC_Pxx_REQ, + .map = IMX8MP_GPUMIX_A53_DOMAIN, + .hskreq = IMX8MP_GPUMIX_PWRDNREQN, + .hskack = IMX8MP_GPUMIX_PWRDNACKN, + }, + .pgc = BIT(IMX8MP_PGC_GPUMIX), + .keep_clocks = true, + }, + + [IMX8MP_POWER_DOMAIN_VPUMIX] = { + .genpd = { + .name = "vpumix", + }, + .bits = { + .pxx = IMX8MP_VPU_MIX_SHARE_LOGIC_Pxx_REQ, + .map = IMX8MP_VPUMIX_A53_DOMAIN, + .hskreq = IMX8MP_VPUMIX_PWRDNREQN, + .hskack = IMX8MP_VPUMIX_PWRDNACKN, + }, + .pgc = BIT(IMX8MP_PGC_VPUMIX), + .keep_clocks = true, + }, + + [IMX8MP_POWER_DOMAIN_GPU3D] = { + .genpd = { + .name = "gpu3d", + }, + .bits = { + .pxx = IMX8MP_GPU_3D_Pxx_REQ, + .map = IMX8MP_GPU3D_A53_DOMAIN, + }, + .pgc = BIT(IMX8MP_PGC_GPU3D), + }, + + [IMX8MP_POWER_DOMAIN_MEDIAMIX] = { + .genpd = { + .name = "mediamix", + }, + .bits = { + .pxx = IMX8MP_MEDIMIX_Pxx_REQ, + .map = IMX8MP_MEDIAMIX_A53_DOMAIN, + .hskreq = IMX8MP_MEDIAMIX_PWRDNREQN, + .hskack = IMX8MP_MEDIAMIX_PWRDNACKN, + }, + .pgc = BIT(IMX8MP_PGC_MEDIAMIX), + .keep_clocks = true, + }, + + [IMX8MP_POWER_DOMAIN_VPU_G1] = { + .genpd = { + .name = "vpu-g1", + }, + .bits = { + .pxx = IMX8MP_VPU_G1_Pxx_REQ, + .map = IMX8MP_VPU_G1_A53_DOMAIN, + }, + .pgc = BIT(IMX8MP_PGC_VPU_G1), + }, + + [IMX8MP_POWER_DOMAIN_VPU_G2] = { + .genpd = { + .name = "vpu-g2", + }, + .bits = { + .pxx = IMX8MP_VPU_G2_Pxx_REQ, + .map = IMX8MP_VPU_G2_A53_DOMAIN + }, + .pgc = BIT(IMX8MP_PGC_VPU_G2), + }, + + [IMX8MP_POWER_DOMAIN_VPU_VC8000E] = { + .genpd = { + .name = "vpu-h1", + }, + .bits = { + .pxx = IMX8MP_VPU_VC8K_Pxx_REQ, + .map = IMX8MP_VPU_VC8000E_A53_DOMAIN, + }, + .pgc = BIT(IMX8MP_PGC_VPU_VC8000E), + }, + + [IMX8MP_POWER_DOMAIN_HDMIMIX] = { + .genpd = { + .name = "hdmimix", + }, + .bits = { + .pxx = IMX8MP_HDMIMIX_Pxx_REQ, + .map = IMX8MP_HDMIMIX_A53_DOMAIN, + .hskreq = IMX8MP_HDMIMIX_PWRDNREQN, + .hskack = IMX8MP_HDMIMIX_PWRDNACKN, + }, + .pgc = BIT(IMX8MP_PGC_HDMIMIX), + .keep_clocks = true, + }, + + [IMX8MP_POWER_DOMAIN_HDMI_PHY] = { + .genpd = { + .name = "hdmi-phy", + }, + .bits = { + .pxx = IMX8MP_HDMI_PHY_Pxx_REQ, + .map = IMX8MP_HDMI_PHY_A53_DOMAIN, + }, + .pgc = BIT(IMX8MP_PGC_HDMI), + }, + + [IMX8MP_POWER_DOMAIN_MIPI_PHY2] = { + .genpd = { + .name = "mipi-phy2", + }, + .bits = { + .pxx = IMX8MP_MIPI_PHY2_Pxx_REQ, + .map = IMX8MP_MIPI_PHY2_A53_DOMAIN, + }, + .pgc = BIT(IMX8MP_PGC_MIPI2), + }, + + [IMX8MP_POWER_DOMAIN_HSIOMIX] = { + .genpd = { + .name = "hsiomix", + }, + .bits = { + .pxx = IMX8MP_HSIOMIX_Pxx_REQ, + .map = IMX8MP_HSIOMIX_A53_DOMAIN, + .hskreq = IMX8MP_HSIOMIX_PWRDNREQN, + .hskack = IMX8MP_HSIOMIX_PWRDNACKN, + }, + .pgc = BIT(IMX8MP_PGC_HSIOMIX), + .keep_clocks = true, + }, + + [IMX8MP_POWER_DOMAIN_MEDIAMIX_ISPDWP] = { + .genpd = { + .name = "mediamix-isp-dwp", + }, + .bits = { + .pxx = IMX8MP_MEDIA_ISP_DWP_Pxx_REQ, + .map = IMX8MP_MEDIA_ISPDWP_A53_DOMAIN, + }, + .pgc = BIT(IMX8MP_PGC_MEDIA_ISP_DWP), + }, +}; + +static const struct regmap_range imx8mp_yes_ranges[] = { + regmap_reg_range(GPC_LPCR_A_CORE_BSC, + IMX8MP_GPC_PGC_CPU_MAPPING), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_NOC), + GPC_PGC_SR(IMX8MP_PGC_NOC)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MIPI1), + GPC_PGC_SR(IMX8MP_PGC_MIPI1)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_PCIE), + GPC_PGC_SR(IMX8MP_PGC_PCIE)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_USB1), + GPC_PGC_SR(IMX8MP_PGC_USB1)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_USB2), + GPC_PGC_SR(IMX8MP_PGC_USB2)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MLMIX), + GPC_PGC_SR(IMX8MP_PGC_MLMIX)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_AUDIOMIX), + GPC_PGC_SR(IMX8MP_PGC_AUDIOMIX)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_GPU2D), + GPC_PGC_SR(IMX8MP_PGC_GPU2D)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_GPUMIX), + GPC_PGC_SR(IMX8MP_PGC_GPUMIX)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_VPUMIX), + GPC_PGC_SR(IMX8MP_PGC_VPUMIX)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_GPU3D), + GPC_PGC_SR(IMX8MP_PGC_GPU3D)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MEDIAMIX), + GPC_PGC_SR(IMX8MP_PGC_MEDIAMIX)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_VPU_G1), + GPC_PGC_SR(IMX8MP_PGC_VPU_G1)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_VPU_G2), + GPC_PGC_SR(IMX8MP_PGC_VPU_G2)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_VPU_VC8000E), + GPC_PGC_SR(IMX8MP_PGC_VPU_VC8000E)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_HDMIMIX), + GPC_PGC_SR(IMX8MP_PGC_HDMIMIX)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_HDMI), + GPC_PGC_SR(IMX8MP_PGC_HDMI)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MIPI2), + GPC_PGC_SR(IMX8MP_PGC_MIPI2)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_HSIOMIX), + GPC_PGC_SR(IMX8MP_PGC_HSIOMIX)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_MEDIA_ISP_DWP), + GPC_PGC_SR(IMX8MP_PGC_MEDIA_ISP_DWP)), + regmap_reg_range(GPC_PGC_CTRL(IMX8MP_PGC_DDRMIX), + GPC_PGC_SR(IMX8MP_PGC_DDRMIX)), +}; + +static const struct regmap_access_table imx8mp_access_table = { + .yes_ranges = imx8mp_yes_ranges, + .n_yes_ranges = ARRAY_SIZE(imx8mp_yes_ranges), +}; + +static const struct imx_pgc_regs imx8mp_pgc_regs = { + .map = IMX8MP_GPC_PGC_CPU_MAPPING, + .pup = IMX8MP_GPC_PU_PGC_SW_PUP_REQ, + .pdn = IMX8MP_GPC_PU_PGC_SW_PDN_REQ, + .hsk = IMX8MP_GPC_PU_PWRHSK, +}; +static const struct imx_pgc_domain_data imx8mp_pgc_domain_data = { + .domains = imx8mp_pgc_domains, + .domains_num = ARRAY_SIZE(imx8mp_pgc_domains), + .reg_access_table = &imx8mp_access_table, + .pgc_regs = &imx8mp_pgc_regs, }; static const struct imx_pgc_domain imx8mn_pgc_domains[] = { @@ -895,6 +1297,7 @@ static const struct imx_pgc_domain_data imx8mn_pgc_domain_data = { .domains = imx8mn_pgc_domains, .domains_num = ARRAY_SIZE(imx8mn_pgc_domains), .reg_access_table = &imx8mn_access_table, + .pgc_regs = &imx7_pgc_regs, }; static int imx_pgc_domain_probe(struct platform_device *pdev) @@ -927,7 +1330,7 @@ static int imx_pgc_domain_probe(struct platform_device *pdev) pm_runtime_enable(domain->dev); if (domain->bits.map) - regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, + regmap_update_bits(domain->regmap, domain->regs->map, domain->bits.map, domain->bits.map); ret = pm_genpd_init(&domain->genpd, NULL, true); @@ -953,7 +1356,7 @@ out_genpd_remove: pm_genpd_remove(&domain->genpd); out_domain_unmap: if (domain->bits.map) - regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, + regmap_update_bits(domain->regmap, domain->regs->map, domain->bits.map, 0); pm_runtime_disable(domain->dev); @@ -968,7 +1371,7 @@ static int imx_pgc_domain_remove(struct platform_device *pdev) pm_genpd_remove(&domain->genpd); if (domain->bits.map) - regmap_update_bits(domain->regmap, GPC_PGC_CPU_MAPPING, + regmap_update_bits(domain->regmap, domain->regs->map, domain->bits.map, 0); pm_runtime_disable(domain->dev); @@ -1099,6 +1502,8 @@ static int imx_gpcv2_probe(struct platform_device *pdev) domain = pd_pdev->dev.platform_data; domain->regmap = regmap; + domain->regs = domain_data->pgc_regs; + domain->genpd.power_on = imx_pgc_power_up; domain->genpd.power_off = imx_pgc_power_down; @@ -1120,6 +1525,7 @@ static const struct of_device_id imx_gpcv2_dt_ids[] = { { .compatible = "fsl,imx7d-gpc", .data = &imx7_pgc_domain_data, }, { .compatible = "fsl,imx8mm-gpc", .data = &imx8mm_pgc_domain_data, }, { .compatible = "fsl,imx8mn-gpc", .data = &imx8mn_pgc_domain_data, }, + { .compatible = "fsl,imx8mp-gpc", .data = &imx8mp_pgc_domain_data, }, { .compatible = "fsl,imx8mq-gpc", .data = &imx8m_pgc_domain_data, }, { } }; diff --git a/drivers/soc/imx/imx8m-blk-ctrl.c b/drivers/soc/imx/imx8m-blk-ctrl.c index ccd0577a771e..7f49385ed2f8 100644 --- a/drivers/soc/imx/imx8m-blk-ctrl.c +++ b/drivers/soc/imx/imx8m-blk-ctrl.c @@ -15,11 +15,12 @@ #include <dt-bindings/power/imx8mm-power.h> #include <dt-bindings/power/imx8mn-power.h> +#include <dt-bindings/power/imx8mp-power.h> #include <dt-bindings/power/imx8mq-power.h> #define BLK_SFT_RSTN 0x0 #define BLK_CLK_EN 0x4 -#define BLK_MIPI_RESET_DIV 0x8 /* Mini/Nano DISPLAY_BLK_CTRL only */ +#define BLK_MIPI_RESET_DIV 0x8 /* Mini/Nano/Plus DISPLAY_BLK_CTRL only */ struct imx8m_blk_ctrl_domain; @@ -41,7 +42,7 @@ struct imx8m_blk_ctrl_domain_data { u32 clk_mask; /* - * i.MX8M Mini and Nano have a third DISPLAY_BLK_CTRL register + * i.MX8M Mini, Nano and Plus have a third DISPLAY_BLK_CTRL register * which is used to control the reset for the MIPI Phy. * Since it's only present in certain circumstances, * an if-statement should be used before setting and clearing this @@ -241,6 +242,7 @@ static int imx8m_blk_ctrl_probe(struct platform_device *pdev) ret = PTR_ERR(domain->power_dev); goto cleanup_pds; } + dev_set_name(domain->power_dev, "%s", data->name); domain->genpd.name = data->name; domain->genpd.power_on = imx8m_blk_ctrl_power_on; @@ -590,6 +592,121 @@ static const struct imx8m_blk_ctrl_data imx8mn_disp_blk_ctl_dev_data = { .num_domains = ARRAY_SIZE(imx8mn_disp_blk_ctl_domain_data), }; +static int imx8mp_media_power_notifier(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct imx8m_blk_ctrl *bc = container_of(nb, struct imx8m_blk_ctrl, + power_nb); + + if (action != GENPD_NOTIFY_ON && action != GENPD_NOTIFY_PRE_OFF) + return NOTIFY_OK; + + /* Enable bus clock and deassert bus reset */ + regmap_set_bits(bc->regmap, BLK_CLK_EN, BIT(8)); + regmap_set_bits(bc->regmap, BLK_SFT_RSTN, BIT(8)); + + /* + * On power up we have no software backchannel to the GPC to + * wait for the ADB handshake to happen, so we just delay for a + * bit. On power down the GPC driver waits for the handshake. + */ + if (action == GENPD_NOTIFY_ON) + udelay(5); + + return NOTIFY_OK; +} + +/* + * From i.MX 8M Plus Applications Processor Reference Manual, Rev. 1, + * section 13.2.2, 13.2.3 + * isp-ahb and dwe are not in Figure 13-5. Media BLK_CTRL Clocks + */ +static const struct imx8m_blk_ctrl_domain_data imx8mp_media_blk_ctl_domain_data[] = { + [IMX8MP_MEDIABLK_PD_MIPI_DSI_1] = { + .name = "mediablk-mipi-dsi-1", + .clk_names = (const char *[]){ "apb", "phy", }, + .num_clks = 2, + .gpc_name = "mipi-dsi1", + .rst_mask = BIT(0) | BIT(1), + .clk_mask = BIT(0) | BIT(1), + .mipi_phy_rst_mask = BIT(17), + }, + [IMX8MP_MEDIABLK_PD_MIPI_CSI2_1] = { + .name = "mediablk-mipi-csi2-1", + .clk_names = (const char *[]){ "apb", "cam1" }, + .num_clks = 2, + .gpc_name = "mipi-csi1", + .rst_mask = BIT(2) | BIT(3), + .clk_mask = BIT(2) | BIT(3), + .mipi_phy_rst_mask = BIT(16), + }, + [IMX8MP_MEDIABLK_PD_LCDIF_1] = { + .name = "mediablk-lcdif-1", + .clk_names = (const char *[]){ "disp1", "apb", "axi", }, + .num_clks = 3, + .gpc_name = "lcdif1", + .rst_mask = BIT(4) | BIT(5) | BIT(23), + .clk_mask = BIT(4) | BIT(5) | BIT(23), + }, + [IMX8MP_MEDIABLK_PD_ISI] = { + .name = "mediablk-isi", + .clk_names = (const char *[]){ "axi", "apb" }, + .num_clks = 2, + .gpc_name = "isi", + .rst_mask = BIT(6) | BIT(7), + .clk_mask = BIT(6) | BIT(7), + }, + [IMX8MP_MEDIABLK_PD_MIPI_CSI2_2] = { + .name = "mediablk-mipi-csi2-2", + .clk_names = (const char *[]){ "apb", "cam2" }, + .num_clks = 2, + .gpc_name = "mipi-csi2", + .rst_mask = BIT(9) | BIT(10), + .clk_mask = BIT(9) | BIT(10), + .mipi_phy_rst_mask = BIT(30), + }, + [IMX8MP_MEDIABLK_PD_LCDIF_2] = { + .name = "mediablk-lcdif-2", + .clk_names = (const char *[]){ "disp1", "apb", "axi", }, + .num_clks = 3, + .gpc_name = "lcdif2", + .rst_mask = BIT(11) | BIT(12) | BIT(24), + .clk_mask = BIT(11) | BIT(12) | BIT(24), + }, + [IMX8MP_MEDIABLK_PD_ISP] = { + .name = "mediablk-isp", + .clk_names = (const char *[]){ "isp", "axi", "apb" }, + .num_clks = 3, + .gpc_name = "isp", + .rst_mask = BIT(16) | BIT(17) | BIT(18), + .clk_mask = BIT(16) | BIT(17) | BIT(18), + }, + [IMX8MP_MEDIABLK_PD_DWE] = { + .name = "mediablk-dwe", + .clk_names = (const char *[]){ "axi", "apb" }, + .num_clks = 2, + .gpc_name = "dwe", + .rst_mask = BIT(19) | BIT(20) | BIT(21), + .clk_mask = BIT(19) | BIT(20) | BIT(21), + }, + [IMX8MP_MEDIABLK_PD_MIPI_DSI_2] = { + .name = "mediablk-mipi-dsi-2", + .clk_names = (const char *[]){ "phy", }, + .num_clks = 1, + .gpc_name = "mipi-dsi2", + .rst_mask = BIT(22), + .clk_mask = BIT(22), + .mipi_phy_rst_mask = BIT(29), + }, +}; + +static const struct imx8m_blk_ctrl_data imx8mp_media_blk_ctl_dev_data = { + .max_reg = 0x138, + .power_notifier_fn = imx8mp_media_power_notifier, + .domains = imx8mp_media_blk_ctl_domain_data, + .num_domains = ARRAY_SIZE(imx8mp_media_blk_ctl_domain_data), +}; + static int imx8mq_vpu_power_notifier(struct notifier_block *nb, unsigned long action, void *data) { @@ -663,6 +780,9 @@ static const struct of_device_id imx8m_blk_ctrl_of_match[] = { .compatible = "fsl,imx8mn-disp-blk-ctrl", .data = &imx8mn_disp_blk_ctl_dev_data }, { + .compatible = "fsl,imx8mp-media-blk-ctrl", + .data = &imx8mp_media_blk_ctl_dev_data + }, { .compatible = "fsl,imx8mq-vpu-blk-ctrl", .data = &imx8mq_vpu_blk_ctl_dev_data }, { diff --git a/drivers/soc/imx/imx8mp-blk-ctrl.c b/drivers/soc/imx/imx8mp-blk-ctrl.c new file mode 100644 index 000000000000..4ca2ede6871b --- /dev/null +++ b/drivers/soc/imx/imx8mp-blk-ctrl.c @@ -0,0 +1,696 @@ +// SPDX-License-Identifier: GPL-2.0+ + +/* + * Copyright 2022 Pengutronix, Lucas Stach <kernel@pengutronix.de> + */ + +#include <linux/clk.h> +#include <linux/device.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> +#include <linux/pm_domain.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> + +#include <dt-bindings/power/imx8mp-power.h> + +#define GPR_REG0 0x0 +#define PCIE_CLOCK_MODULE_EN BIT(0) +#define USB_CLOCK_MODULE_EN BIT(1) + +struct imx8mp_blk_ctrl_domain; + +struct imx8mp_blk_ctrl { + struct device *dev; + struct notifier_block power_nb; + struct device *bus_power_dev; + struct regmap *regmap; + struct imx8mp_blk_ctrl_domain *domains; + struct genpd_onecell_data onecell_data; + void (*power_off) (struct imx8mp_blk_ctrl *bc, struct imx8mp_blk_ctrl_domain *domain); + void (*power_on) (struct imx8mp_blk_ctrl *bc, struct imx8mp_blk_ctrl_domain *domain); +}; + +struct imx8mp_blk_ctrl_domain_data { + const char *name; + const char * const *clk_names; + int num_clks; + const char *gpc_name; +}; + +#define DOMAIN_MAX_CLKS 2 + +struct imx8mp_blk_ctrl_domain { + struct generic_pm_domain genpd; + const struct imx8mp_blk_ctrl_domain_data *data; + struct clk_bulk_data clks[DOMAIN_MAX_CLKS]; + struct device *power_dev; + struct imx8mp_blk_ctrl *bc; + int id; +}; + +struct imx8mp_blk_ctrl_data { + int max_reg; + notifier_fn_t power_notifier_fn; + void (*power_off) (struct imx8mp_blk_ctrl *bc, struct imx8mp_blk_ctrl_domain *domain); + void (*power_on) (struct imx8mp_blk_ctrl *bc, struct imx8mp_blk_ctrl_domain *domain); + const struct imx8mp_blk_ctrl_domain_data *domains; + int num_domains; +}; + +static inline struct imx8mp_blk_ctrl_domain * +to_imx8mp_blk_ctrl_domain(struct generic_pm_domain *genpd) +{ + return container_of(genpd, struct imx8mp_blk_ctrl_domain, genpd); +} + +static void imx8mp_hsio_blk_ctrl_power_on(struct imx8mp_blk_ctrl *bc, + struct imx8mp_blk_ctrl_domain *domain) +{ + switch (domain->id) { + case IMX8MP_HSIOBLK_PD_USB: + regmap_set_bits(bc->regmap, GPR_REG0, USB_CLOCK_MODULE_EN); + break; + case IMX8MP_HSIOBLK_PD_PCIE: + regmap_set_bits(bc->regmap, GPR_REG0, PCIE_CLOCK_MODULE_EN); + break; + default: + break; + } +} + +static void imx8mp_hsio_blk_ctrl_power_off(struct imx8mp_blk_ctrl *bc, + struct imx8mp_blk_ctrl_domain *domain) +{ + switch (domain->id) { + case IMX8MP_HSIOBLK_PD_USB: + regmap_clear_bits(bc->regmap, GPR_REG0, USB_CLOCK_MODULE_EN); + break; + case IMX8MP_HSIOBLK_PD_PCIE: + regmap_clear_bits(bc->regmap, GPR_REG0, PCIE_CLOCK_MODULE_EN); + break; + default: + break; + } +} + +static int imx8mp_hsio_power_notifier(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct imx8mp_blk_ctrl *bc = container_of(nb, struct imx8mp_blk_ctrl, + power_nb); + struct clk_bulk_data *usb_clk = bc->domains[IMX8MP_HSIOBLK_PD_USB].clks; + int num_clks = bc->domains[IMX8MP_HSIOBLK_PD_USB].data->num_clks; + int ret; + + switch (action) { + case GENPD_NOTIFY_ON: + /* + * enable USB clock for a moment for the power-on ADB handshake + * to proceed + */ + ret = clk_bulk_prepare_enable(num_clks, usb_clk); + if (ret) + return NOTIFY_BAD; + regmap_set_bits(bc->regmap, GPR_REG0, USB_CLOCK_MODULE_EN); + + udelay(5); + + regmap_clear_bits(bc->regmap, GPR_REG0, USB_CLOCK_MODULE_EN); + clk_bulk_disable_unprepare(num_clks, usb_clk); + break; + case GENPD_NOTIFY_PRE_OFF: + /* enable USB clock for the power-down ADB handshake to work */ + ret = clk_bulk_prepare_enable(num_clks, usb_clk); + if (ret) + return NOTIFY_BAD; + + regmap_set_bits(bc->regmap, GPR_REG0, USB_CLOCK_MODULE_EN); + break; + case GENPD_NOTIFY_OFF: + clk_bulk_disable_unprepare(num_clks, usb_clk); + break; + default: + break; + } + + return NOTIFY_OK; +} + +static const struct imx8mp_blk_ctrl_domain_data imx8mp_hsio_domain_data[] = { + [IMX8MP_HSIOBLK_PD_USB] = { + .name = "hsioblk-usb", + .clk_names = (const char *[]){ "usb" }, + .num_clks = 1, + .gpc_name = "usb", + }, + [IMX8MP_HSIOBLK_PD_USB_PHY1] = { + .name = "hsioblk-usb-phy1", + .gpc_name = "usb-phy1", + }, + [IMX8MP_HSIOBLK_PD_USB_PHY2] = { + .name = "hsioblk-usb-phy2", + .gpc_name = "usb-phy2", + }, + [IMX8MP_HSIOBLK_PD_PCIE] = { + .name = "hsioblk-pcie", + .clk_names = (const char *[]){ "pcie" }, + .num_clks = 1, + .gpc_name = "pcie", + }, + [IMX8MP_HSIOBLK_PD_PCIE_PHY] = { + .name = "hsioblk-pcie-phy", + .gpc_name = "pcie-phy", + }, +}; + +static const struct imx8mp_blk_ctrl_data imx8mp_hsio_blk_ctl_dev_data = { + .max_reg = 0x24, + .power_on = imx8mp_hsio_blk_ctrl_power_on, + .power_off = imx8mp_hsio_blk_ctrl_power_off, + .power_notifier_fn = imx8mp_hsio_power_notifier, + .domains = imx8mp_hsio_domain_data, + .num_domains = ARRAY_SIZE(imx8mp_hsio_domain_data), +}; + +#define HDMI_RTX_RESET_CTL0 0x20 +#define HDMI_RTX_CLK_CTL0 0x40 +#define HDMI_RTX_CLK_CTL1 0x50 +#define HDMI_RTX_CLK_CTL2 0x60 +#define HDMI_RTX_CLK_CTL3 0x70 +#define HDMI_RTX_CLK_CTL4 0x80 +#define HDMI_TX_CONTROL0 0x200 + +static void imx8mp_hdmi_blk_ctrl_power_on(struct imx8mp_blk_ctrl *bc, + struct imx8mp_blk_ctrl_domain *domain) +{ + switch (domain->id) { + case IMX8MP_HDMIBLK_PD_IRQSTEER: + regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(9)); + regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(16)); + break; + case IMX8MP_HDMIBLK_PD_LCDIF: + regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0, + BIT(7) | BIT(16) | BIT(17) | BIT(18) | + BIT(19) | BIT(20)); + regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(11)); + regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, + BIT(4) | BIT(5) | BIT(6)); + break; + case IMX8MP_HDMIBLK_PD_PAI: + regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(17)); + regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(18)); + break; + case IMX8MP_HDMIBLK_PD_PVI: + regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(28)); + regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(22)); + break; + case IMX8MP_HDMIBLK_PD_TRNG: + regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(27) | BIT(30)); + regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(20)); + break; + case IMX8MP_HDMIBLK_PD_HDMI_TX: + regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0, + BIT(2) | BIT(4) | BIT(5)); + regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, + BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) | + BIT(18) | BIT(19) | BIT(20) | BIT(21)); + regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, + BIT(7) | BIT(10) | BIT(11)); + regmap_set_bits(bc->regmap, HDMI_TX_CONTROL0, BIT(1)); + break; + case IMX8MP_HDMIBLK_PD_HDMI_TX_PHY: + regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(22) | BIT(24)); + regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(12)); + regmap_clear_bits(bc->regmap, HDMI_TX_CONTROL0, BIT(3)); + break; + default: + break; + } +} + +static void imx8mp_hdmi_blk_ctrl_power_off(struct imx8mp_blk_ctrl *bc, + struct imx8mp_blk_ctrl_domain *domain) +{ + switch (domain->id) { + case IMX8MP_HDMIBLK_PD_IRQSTEER: + regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL0, BIT(9)); + regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(16)); + break; + case IMX8MP_HDMIBLK_PD_LCDIF: + regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, + BIT(4) | BIT(5) | BIT(6)); + regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(11)); + regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL0, + BIT(7) | BIT(16) | BIT(17) | BIT(18) | + BIT(19) | BIT(20)); + break; + case IMX8MP_HDMIBLK_PD_PAI: + regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(18)); + regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(17)); + break; + case IMX8MP_HDMIBLK_PD_PVI: + regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(22)); + regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(28)); + break; + case IMX8MP_HDMIBLK_PD_TRNG: + regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(20)); + regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(27) | BIT(30)); + break; + case IMX8MP_HDMIBLK_PD_HDMI_TX: + regmap_clear_bits(bc->regmap, HDMI_TX_CONTROL0, BIT(1)); + regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, + BIT(7) | BIT(10) | BIT(11)); + regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, + BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) | + BIT(18) | BIT(19) | BIT(20) | BIT(21)); + regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL0, + BIT(2) | BIT(4) | BIT(5)); + break; + case IMX8MP_HDMIBLK_PD_HDMI_TX_PHY: + regmap_set_bits(bc->regmap, HDMI_TX_CONTROL0, BIT(3)); + regmap_clear_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(12)); + regmap_clear_bits(bc->regmap, HDMI_RTX_CLK_CTL1, BIT(22) | BIT(24)); + break; + default: + break; + } +} + +static int imx8mp_hdmi_power_notifier(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct imx8mp_blk_ctrl *bc = container_of(nb, struct imx8mp_blk_ctrl, + power_nb); + + if (action != GENPD_NOTIFY_ON) + return NOTIFY_OK; + + /* + * Contrary to other blk-ctrls the reset and clock don't clear when the + * power domain is powered down. To ensure the proper reset pulsing, + * first clear them all to asserted state, then enable the bus clocks + * and then release the ADB reset. + */ + regmap_write(bc->regmap, HDMI_RTX_RESET_CTL0, 0x0); + regmap_write(bc->regmap, HDMI_RTX_CLK_CTL0, 0x0); + regmap_write(bc->regmap, HDMI_RTX_CLK_CTL1, 0x0); + regmap_set_bits(bc->regmap, HDMI_RTX_CLK_CTL0, + BIT(0) | BIT(1) | BIT(10)); + regmap_set_bits(bc->regmap, HDMI_RTX_RESET_CTL0, BIT(0)); + + /* + * On power up we have no software backchannel to the GPC to + * wait for the ADB handshake to happen, so we just delay for a + * bit. On power down the GPC driver waits for the handshake. + */ + udelay(5); + + return NOTIFY_OK; +} + +static const struct imx8mp_blk_ctrl_domain_data imx8mp_hdmi_domain_data[] = { + [IMX8MP_HDMIBLK_PD_IRQSTEER] = { + .name = "hdmiblk-irqsteer", + .clk_names = (const char *[]){ "apb" }, + .num_clks = 1, + .gpc_name = "irqsteer", + }, + [IMX8MP_HDMIBLK_PD_LCDIF] = { + .name = "hdmiblk-lcdif", + .clk_names = (const char *[]){ "axi", "apb" }, + .num_clks = 2, + .gpc_name = "lcdif", + }, + [IMX8MP_HDMIBLK_PD_PAI] = { + .name = "hdmiblk-pai", + .clk_names = (const char *[]){ "apb" }, + .num_clks = 1, + .gpc_name = "pai", + }, + [IMX8MP_HDMIBLK_PD_PVI] = { + .name = "hdmiblk-pvi", + .clk_names = (const char *[]){ "apb" }, + .num_clks = 1, + .gpc_name = "pvi", + }, + [IMX8MP_HDMIBLK_PD_TRNG] = { + .name = "hdmiblk-trng", + .clk_names = (const char *[]){ "apb" }, + .num_clks = 1, + .gpc_name = "trng", + }, + [IMX8MP_HDMIBLK_PD_HDMI_TX] = { + .name = "hdmiblk-hdmi-tx", + .clk_names = (const char *[]){ "apb", "ref_266m" }, + .num_clks = 2, + .gpc_name = "hdmi-tx", + }, + [IMX8MP_HDMIBLK_PD_HDMI_TX_PHY] = { + .name = "hdmiblk-hdmi-tx-phy", + .clk_names = (const char *[]){ "apb", "ref_24m" }, + .num_clks = 2, + .gpc_name = "hdmi-tx-phy", + }, +}; + +static const struct imx8mp_blk_ctrl_data imx8mp_hdmi_blk_ctl_dev_data = { + .max_reg = 0x23c, + .power_on = imx8mp_hdmi_blk_ctrl_power_on, + .power_off = imx8mp_hdmi_blk_ctrl_power_off, + .power_notifier_fn = imx8mp_hdmi_power_notifier, + .domains = imx8mp_hdmi_domain_data, + .num_domains = ARRAY_SIZE(imx8mp_hdmi_domain_data), +}; + +static int imx8mp_blk_ctrl_power_on(struct generic_pm_domain *genpd) +{ + struct imx8mp_blk_ctrl_domain *domain = to_imx8mp_blk_ctrl_domain(genpd); + const struct imx8mp_blk_ctrl_domain_data *data = domain->data; + struct imx8mp_blk_ctrl *bc = domain->bc; + int ret; + + /* make sure bus domain is awake */ + ret = pm_runtime_resume_and_get(bc->bus_power_dev); + if (ret < 0) { + dev_err(bc->dev, "failed to power up bus domain\n"); + return ret; + } + + /* enable upstream clocks */ + ret = clk_bulk_prepare_enable(data->num_clks, domain->clks); + if (ret) { + dev_err(bc->dev, "failed to enable clocks\n"); + goto bus_put; + } + + /* domain specific blk-ctrl manipulation */ + bc->power_on(bc, domain); + + /* power up upstream GPC domain */ + ret = pm_runtime_resume_and_get(domain->power_dev); + if (ret < 0) { + dev_err(bc->dev, "failed to power up peripheral domain\n"); + goto clk_disable; + } + + clk_bulk_disable_unprepare(data->num_clks, domain->clks); + + return 0; + +clk_disable: + clk_bulk_disable_unprepare(data->num_clks, domain->clks); +bus_put: + pm_runtime_put(bc->bus_power_dev); + + return ret; +} + +static int imx8mp_blk_ctrl_power_off(struct generic_pm_domain *genpd) +{ + struct imx8mp_blk_ctrl_domain *domain = to_imx8mp_blk_ctrl_domain(genpd); + const struct imx8mp_blk_ctrl_domain_data *data = domain->data; + struct imx8mp_blk_ctrl *bc = domain->bc; + int ret; + + ret = clk_bulk_prepare_enable(data->num_clks, domain->clks); + if (ret) { + dev_err(bc->dev, "failed to enable clocks\n"); + return ret; + } + + /* domain specific blk-ctrl manipulation */ + bc->power_off(bc, domain); + + clk_bulk_disable_unprepare(data->num_clks, domain->clks); + + /* power down upstream GPC domain */ + pm_runtime_put(domain->power_dev); + + /* allow bus domain to suspend */ + pm_runtime_put(bc->bus_power_dev); + + return 0; +} + +static struct generic_pm_domain * +imx8m_blk_ctrl_xlate(struct of_phandle_args *args, void *data) +{ + struct genpd_onecell_data *onecell_data = data; + unsigned int index = args->args[0]; + + if (args->args_count != 1 || + index >= onecell_data->num_domains) + return ERR_PTR(-EINVAL); + + return onecell_data->domains[index]; +} + +static struct lock_class_key blk_ctrl_genpd_lock_class; + +static int imx8mp_blk_ctrl_probe(struct platform_device *pdev) +{ + const struct imx8mp_blk_ctrl_data *bc_data; + struct device *dev = &pdev->dev; + struct imx8mp_blk_ctrl *bc; + void __iomem *base; + int num_domains, i, ret; + + struct regmap_config regmap_config = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, + }; + + bc = devm_kzalloc(dev, sizeof(*bc), GFP_KERNEL); + if (!bc) + return -ENOMEM; + + bc->dev = dev; + + bc_data = of_device_get_match_data(dev); + num_domains = bc_data->num_domains; + + base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); + + regmap_config.max_register = bc_data->max_reg; + bc->regmap = devm_regmap_init_mmio(dev, base, ®map_config); + if (IS_ERR(bc->regmap)) + return dev_err_probe(dev, PTR_ERR(bc->regmap), + "failed to init regmap\n"); + + bc->domains = devm_kcalloc(dev, num_domains, + sizeof(struct imx8mp_blk_ctrl_domain), + GFP_KERNEL); + if (!bc->domains) + return -ENOMEM; + + bc->onecell_data.num_domains = num_domains; + bc->onecell_data.xlate = imx8m_blk_ctrl_xlate; + bc->onecell_data.domains = + devm_kcalloc(dev, num_domains, + sizeof(struct generic_pm_domain *), GFP_KERNEL); + if (!bc->onecell_data.domains) + return -ENOMEM; + + bc->bus_power_dev = genpd_dev_pm_attach_by_name(dev, "bus"); + if (IS_ERR(bc->bus_power_dev)) + return dev_err_probe(dev, PTR_ERR(bc->bus_power_dev), + "failed to attach bus power domain\n"); + + bc->power_off = bc_data->power_off; + bc->power_on = bc_data->power_on; + + for (i = 0; i < num_domains; i++) { + const struct imx8mp_blk_ctrl_domain_data *data = &bc_data->domains[i]; + struct imx8mp_blk_ctrl_domain *domain = &bc->domains[i]; + int j; + + domain->data = data; + + for (j = 0; j < data->num_clks; j++) + domain->clks[j].id = data->clk_names[j]; + + ret = devm_clk_bulk_get(dev, data->num_clks, domain->clks); + if (ret) { + dev_err_probe(dev, ret, "failed to get clock\n"); + goto cleanup_pds; + } + + domain->power_dev = + dev_pm_domain_attach_by_name(dev, data->gpc_name); + if (IS_ERR(domain->power_dev)) { + dev_err_probe(dev, PTR_ERR(domain->power_dev), + "failed to attach power domain %s\n", + data->gpc_name); + ret = PTR_ERR(domain->power_dev); + goto cleanup_pds; + } + dev_set_name(domain->power_dev, "%s", data->name); + + domain->genpd.name = data->name; + domain->genpd.power_on = imx8mp_blk_ctrl_power_on; + domain->genpd.power_off = imx8mp_blk_ctrl_power_off; + domain->bc = bc; + domain->id = i; + + ret = pm_genpd_init(&domain->genpd, NULL, true); + if (ret) { + dev_err_probe(dev, ret, "failed to init power domain\n"); + dev_pm_domain_detach(domain->power_dev, true); + goto cleanup_pds; + } + + /* + * We use runtime PM to trigger power on/off of the upstream GPC + * domain, as a strict hierarchical parent/child power domain + * setup doesn't allow us to meet the sequencing requirements. + * This means we have nested locking of genpd locks, without the + * nesting being visible at the genpd level, so we need a + * separate lock class to make lockdep aware of the fact that + * this are separate domain locks that can be nested without a + * self-deadlock. + */ + lockdep_set_class(&domain->genpd.mlock, + &blk_ctrl_genpd_lock_class); + + bc->onecell_data.domains[i] = &domain->genpd; + } + + ret = of_genpd_add_provider_onecell(dev->of_node, &bc->onecell_data); + if (ret) { + dev_err_probe(dev, ret, "failed to add power domain provider\n"); + goto cleanup_pds; + } + + bc->power_nb.notifier_call = bc_data->power_notifier_fn; + ret = dev_pm_genpd_add_notifier(bc->bus_power_dev, &bc->power_nb); + if (ret) { + dev_err_probe(dev, ret, "failed to add power notifier\n"); + goto cleanup_provider; + } + + dev_set_drvdata(dev, bc); + + return 0; + +cleanup_provider: + of_genpd_del_provider(dev->of_node); +cleanup_pds: + for (i--; i >= 0; i--) { + pm_genpd_remove(&bc->domains[i].genpd); + dev_pm_domain_detach(bc->domains[i].power_dev, true); + } + + dev_pm_domain_detach(bc->bus_power_dev, true); + + return ret; +} + +static int imx8mp_blk_ctrl_remove(struct platform_device *pdev) +{ + struct imx8mp_blk_ctrl *bc = dev_get_drvdata(&pdev->dev); + int i; + + of_genpd_del_provider(pdev->dev.of_node); + + for (i = 0; bc->onecell_data.num_domains; i++) { + struct imx8mp_blk_ctrl_domain *domain = &bc->domains[i]; + + pm_genpd_remove(&domain->genpd); + dev_pm_domain_detach(domain->power_dev, true); + } + + dev_pm_genpd_remove_notifier(bc->bus_power_dev); + + dev_pm_domain_detach(bc->bus_power_dev, true); + + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int imx8mp_blk_ctrl_suspend(struct device *dev) +{ + struct imx8mp_blk_ctrl *bc = dev_get_drvdata(dev); + int ret, i; + + /* + * This may look strange, but is done so the generic PM_SLEEP code + * can power down our domains and more importantly power them up again + * after resume, without tripping over our usage of runtime PM to + * control the upstream GPC domains. Things happen in the right order + * in the system suspend/resume paths due to the device parent/child + * hierarchy. + */ + ret = pm_runtime_get_sync(bc->bus_power_dev); + if (ret < 0) { + pm_runtime_put_noidle(bc->bus_power_dev); + return ret; + } + + for (i = 0; i < bc->onecell_data.num_domains; i++) { + struct imx8mp_blk_ctrl_domain *domain = &bc->domains[i]; + + ret = pm_runtime_get_sync(domain->power_dev); + if (ret < 0) { + pm_runtime_put_noidle(domain->power_dev); + goto out_fail; + } + } + + return 0; + +out_fail: + for (i--; i >= 0; i--) + pm_runtime_put(bc->domains[i].power_dev); + + pm_runtime_put(bc->bus_power_dev); + + return ret; +} + +static int imx8mp_blk_ctrl_resume(struct device *dev) +{ + struct imx8mp_blk_ctrl *bc = dev_get_drvdata(dev); + int i; + + for (i = 0; i < bc->onecell_data.num_domains; i++) + pm_runtime_put(bc->domains[i].power_dev); + + pm_runtime_put(bc->bus_power_dev); + + return 0; +} +#endif + +static const struct dev_pm_ops imx8mp_blk_ctrl_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(imx8mp_blk_ctrl_suspend, + imx8mp_blk_ctrl_resume) +}; + +static const struct of_device_id imx8mp_blk_ctrl_of_match[] = { + { + .compatible = "fsl,imx8mp-hsio-blk-ctrl", + .data = &imx8mp_hsio_blk_ctl_dev_data, + }, { + .compatible = "fsl,imx8mp-hdmi-blk-ctrl", + .data = &imx8mp_hdmi_blk_ctl_dev_data, + }, { + /* Sentinel */ + } +}; +MODULE_DEVICE_TABLE(of, imx8m_blk_ctrl_of_match); + +static struct platform_driver imx8mp_blk_ctrl_driver = { + .probe = imx8mp_blk_ctrl_probe, + .remove = imx8mp_blk_ctrl_remove, + .driver = { + .name = "imx8mp-blk-ctrl", + .pm = &imx8mp_blk_ctrl_pm_ops, + .of_match_table = imx8mp_blk_ctrl_of_match, + }, +}; +module_platform_driver(imx8mp_blk_ctrl_driver); |