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author | Olof Johansson <olof@lixom.net> | 2018-05-14 13:49:11 -0700 |
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committer | Olof Johansson <olof@lixom.net> | 2018-05-14 13:49:11 -0700 |
commit | 3ea8f233cfe546d060360ce0d01844f60744fb21 (patch) | |
tree | 98815a731771fbf523729a6d35571f68658f0633 /drivers/soc | |
parent | 4e7383e14e0562923c8fcb3b7edd88e663815c5f (diff) | |
parent | b2b568c591ddbb20d597e256212579d70dbf3000 (diff) | |
download | linux-3ea8f233cfe546d060360ce0d01844f60744fb21.tar.gz linux-3ea8f233cfe546d060360ce0d01844f60744fb21.tar.bz2 linux-3ea8f233cfe546d060360ce0d01844f60744fb21.zip |
Merge tag 'samsung-drivers-4.18' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into next/drivers
Samsung soc drivers changes for v4.18
1. Clock operations during power domain on/off were moved to respective
clock driver so clean up obsolete code from power domain driver.
* tag 'samsung-drivers-4.18' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
soc: samsung: pm_domains: Deprecate support for clocks
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/soc')
-rw-r--r-- | drivers/soc/samsung/pm_domains.c | 90 |
1 files changed, 1 insertions, 89 deletions
diff --git a/drivers/soc/samsung/pm_domains.c b/drivers/soc/samsung/pm_domains.c index caf45cf7aa8e..ab8582971bfc 100644 --- a/drivers/soc/samsung/pm_domains.c +++ b/drivers/soc/samsung/pm_domains.c @@ -13,14 +13,11 @@ #include <linux/err.h> #include <linux/slab.h> #include <linux/pm_domain.h> -#include <linux/clk.h> #include <linux/delay.h> #include <linux/of_address.h> #include <linux/of_platform.h> #include <linux/sched.h> -#define MAX_CLK_PER_DOMAIN 4 - struct exynos_pm_domain_config { /* Value for LOCAL_PWR_CFG and STATUS fields for each domain */ u32 local_pwr_cfg; @@ -33,10 +30,6 @@ struct exynos_pm_domain { void __iomem *base; bool is_off; struct generic_pm_domain pd; - struct clk *oscclk; - struct clk *clk[MAX_CLK_PER_DOMAIN]; - struct clk *pclk[MAX_CLK_PER_DOMAIN]; - struct clk *asb_clk[MAX_CLK_PER_DOMAIN]; u32 local_pwr_cfg; }; @@ -46,29 +39,10 @@ static int exynos_pd_power(struct generic_pm_domain *domain, bool power_on) void __iomem *base; u32 timeout, pwr; char *op; - int i; pd = container_of(domain, struct exynos_pm_domain, pd); base = pd->base; - for (i = 0; i < MAX_CLK_PER_DOMAIN; i++) { - if (IS_ERR(pd->asb_clk[i])) - break; - clk_prepare_enable(pd->asb_clk[i]); - } - - /* Set oscclk before powering off a domain*/ - if (!power_on) { - for (i = 0; i < MAX_CLK_PER_DOMAIN; i++) { - if (IS_ERR(pd->clk[i])) - break; - pd->pclk[i] = clk_get_parent(pd->clk[i]); - if (clk_set_parent(pd->clk[i], pd->oscclk)) - pr_err("%s: error setting oscclk as parent to clock %d\n", - domain->name, i); - } - } - pwr = power_on ? pd->local_pwr_cfg : 0; writel_relaxed(pwr, base); @@ -86,26 +60,6 @@ static int exynos_pd_power(struct generic_pm_domain *domain, bool power_on) usleep_range(80, 100); } - /* Restore clocks after powering on a domain*/ - if (power_on) { - for (i = 0; i < MAX_CLK_PER_DOMAIN; i++) { - if (IS_ERR(pd->clk[i])) - break; - - if (IS_ERR(pd->pclk[i])) - continue; /* Skip on first power up */ - if (clk_set_parent(pd->clk[i], pd->pclk[i])) - pr_err("%s: error setting parent to clock%d\n", - domain->name, i); - } - } - - for (i = 0; i < MAX_CLK_PER_DOMAIN; i++) { - if (IS_ERR(pd->asb_clk[i])) - break; - clk_disable_unprepare(pd->asb_clk[i]); - } - return 0; } @@ -147,12 +101,6 @@ static __init const char *exynos_get_domain_name(struct device_node *node) return kstrdup_const(name, GFP_KERNEL); } -static const char *soc_force_no_clk[] = { - "samsung,exynos5250-clock", - "samsung,exynos5420-clock", - "samsung,exynos5800-clock", -}; - static __init int exynos4_pm_init_power_domain(void) { struct device_node *np; @@ -161,7 +109,7 @@ static __init int exynos4_pm_init_power_domain(void) for_each_matching_node_and_match(np, exynos_pm_domain_of_match, &match) { const struct exynos_pm_domain_config *pm_domain_cfg; struct exynos_pm_domain *pd; - int on, i; + int on; pm_domain_cfg = match->data; @@ -189,42 +137,6 @@ static __init int exynos4_pm_init_power_domain(void) pd->pd.power_on = exynos_pd_power_on; pd->local_pwr_cfg = pm_domain_cfg->local_pwr_cfg; - for (i = 0; i < ARRAY_SIZE(soc_force_no_clk); i++) - if (of_find_compatible_node(NULL, NULL, - soc_force_no_clk[i])) - goto no_clk; - - for (i = 0; i < MAX_CLK_PER_DOMAIN; i++) { - char clk_name[8]; - - snprintf(clk_name, sizeof(clk_name), "asb%d", i); - pd->asb_clk[i] = of_clk_get_by_name(np, clk_name); - if (IS_ERR(pd->asb_clk[i])) - break; - } - - pd->oscclk = of_clk_get_by_name(np, "oscclk"); - if (IS_ERR(pd->oscclk)) - goto no_clk; - - for (i = 0; i < MAX_CLK_PER_DOMAIN; i++) { - char clk_name[8]; - - snprintf(clk_name, sizeof(clk_name), "clk%d", i); - pd->clk[i] = of_clk_get_by_name(np, clk_name); - if (IS_ERR(pd->clk[i])) - break; - /* - * Skip setting parent on first power up. - * The parent at this time may not be useful at all. - */ - pd->pclk[i] = ERR_PTR(-EINVAL); - } - - if (IS_ERR(pd->clk[0])) - clk_put(pd->oscclk); - -no_clk: on = readl_relaxed(pd->base + 0x4) & pd->local_pwr_cfg; pm_genpd_init(&pd->pd, NULL, !on); |