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author | Mark Brown <broonie@kernel.org> | 2019-10-08 19:12:28 +0100 |
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committer | Mark Brown <broonie@kernel.org> | 2019-10-08 19:12:28 +0100 |
commit | 2b60d727cb2e059e0569b937e742e93423ae1541 (patch) | |
tree | 6e16732ab66073675f848df1c98a76b067b60882 /drivers/spi | |
parent | d6b71dfaeeba115dd61a7f367cf04c2d0ca77ebb (diff) | |
parent | f6910679e17ad4915f008bd2c614d38052426f7c (diff) | |
download | linux-2b60d727cb2e059e0569b937e742e93423ae1541.tar.gz linux-2b60d727cb2e059e0569b937e742e93423ae1541.tar.bz2 linux-2b60d727cb2e059e0569b937e742e93423ae1541.zip |
Merge branch 'for-5.4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-5.5
Diffstat (limited to 'drivers/spi')
-rw-r--r-- | drivers/spi/spi-fsl-lpspi.c | 2 | ||||
-rw-r--r-- | drivers/spi/spi-fsl-qspi.c | 38 | ||||
-rw-r--r-- | drivers/spi/spi-gpio.c | 4 | ||||
-rw-r--r-- | drivers/spi/spi-mxic.c | 6 | ||||
-rw-r--r-- | drivers/spi/spi-orion.c | 3 | ||||
-rw-r--r-- | drivers/spi/spi-stm32-qspi.c | 3 | ||||
-rw-r--r-- | drivers/spi/spidev.c | 3 |
7 files changed, 45 insertions, 14 deletions
diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c index 5efd73cd0ead..6f4769a53f8a 100644 --- a/drivers/spi/spi-fsl-lpspi.c +++ b/drivers/spi/spi-fsl-lpspi.c @@ -938,7 +938,7 @@ static int fsl_lpspi_probe(struct platform_device *pdev) ret = pm_runtime_get_sync(fsl_lpspi->dev); if (ret < 0) { dev_err(fsl_lpspi->dev, "failed to enable clock\n"); - return ret; + goto out_controller_put; } temp = readl(fsl_lpspi->base + IMX7ULP_PARAM); diff --git a/drivers/spi/spi-fsl-qspi.c b/drivers/spi/spi-fsl-qspi.c index 51385b0927e3..79b1558b74b8 100644 --- a/drivers/spi/spi-fsl-qspi.c +++ b/drivers/spi/spi-fsl-qspi.c @@ -63,6 +63,11 @@ #define QUADSPI_IPCR 0x08 #define QUADSPI_IPCR_SEQID(x) ((x) << 24) +#define QUADSPI_FLSHCR 0x0c +#define QUADSPI_FLSHCR_TCSS_MASK GENMASK(3, 0) +#define QUADSPI_FLSHCR_TCSH_MASK GENMASK(11, 8) +#define QUADSPI_FLSHCR_TDH_MASK GENMASK(17, 16) + #define QUADSPI_BUF0CR 0x10 #define QUADSPI_BUF1CR 0x14 #define QUADSPI_BUF2CR 0x18 @@ -100,6 +105,9 @@ #define QUADSPI_FR 0x160 #define QUADSPI_FR_TFF_MASK BIT(0) +#define QUADSPI_RSER 0x164 +#define QUADSPI_RSER_TFIE BIT(0) + #define QUADSPI_SPTRCLR 0x16c #define QUADSPI_SPTRCLR_IPPTRC BIT(8) #define QUADSPI_SPTRCLR_BFPTRC BIT(0) @@ -117,9 +125,6 @@ #define QUADSPI_LCKER_LOCK BIT(0) #define QUADSPI_LCKER_UNLOCK BIT(1) -#define QUADSPI_RSER 0x164 -#define QUADSPI_RSER_TFIE BIT(0) - #define QUADSPI_LUT_BASE 0x310 #define QUADSPI_LUT_OFFSET (SEQID_LUT * 4 * 4) #define QUADSPI_LUT_REG(idx) \ @@ -186,6 +191,12 @@ */ #define QUADSPI_QUIRK_BASE_INTERNAL BIT(4) +/* + * Controller uses TDH bits in register QUADSPI_FLSHCR. + * They need to be set in accordance with the DDR/SDR mode. + */ +#define QUADSPI_QUIRK_USE_TDH_SETTING BIT(5) + struct fsl_qspi_devtype_data { unsigned int rxfifo; unsigned int txfifo; @@ -218,7 +229,8 @@ static const struct fsl_qspi_devtype_data imx7d_data = { .txfifo = SZ_512, .invalid_mstrid = QUADSPI_BUFXCR_INVALID_MSTRID, .ahb_buf_size = SZ_1K, - .quirks = QUADSPI_QUIRK_TKT253890 | QUADSPI_QUIRK_4X_INT_CLK, + .quirks = QUADSPI_QUIRK_TKT253890 | QUADSPI_QUIRK_4X_INT_CLK | + QUADSPI_QUIRK_USE_TDH_SETTING, .little_endian = true, }; @@ -227,7 +239,8 @@ static const struct fsl_qspi_devtype_data imx6ul_data = { .txfifo = SZ_512, .invalid_mstrid = QUADSPI_BUFXCR_INVALID_MSTRID, .ahb_buf_size = SZ_1K, - .quirks = QUADSPI_QUIRK_TKT253890 | QUADSPI_QUIRK_4X_INT_CLK, + .quirks = QUADSPI_QUIRK_TKT253890 | QUADSPI_QUIRK_4X_INT_CLK | + QUADSPI_QUIRK_USE_TDH_SETTING, .little_endian = true, }; @@ -287,6 +300,11 @@ static inline int needs_amba_base_offset(struct fsl_qspi *q) return !(q->devtype_data->quirks & QUADSPI_QUIRK_BASE_INTERNAL); } +static inline int needs_tdh_setting(struct fsl_qspi *q) +{ + return q->devtype_data->quirks & QUADSPI_QUIRK_USE_TDH_SETTING; +} + /* * An IC bug makes it necessary to rearrange the 32-bit data. * Later chips, such as IMX6SLX, have fixed this bug. @@ -727,6 +745,16 @@ static int fsl_qspi_default_setup(struct fsl_qspi *q) qspi_writel(q, QUADSPI_MCR_MDIS_MASK | QUADSPI_MCR_RESERVED_MASK, base + QUADSPI_MCR); + /* + * Previous boot stages (BootROM, bootloader) might have used DDR + * mode and did not clear the TDH bits. As we currently use SDR mode + * only, clear the TDH bits if necessary. + */ + if (needs_tdh_setting(q)) + qspi_writel(q, qspi_readl(q, base + QUADSPI_FLSHCR) & + ~QUADSPI_FLSHCR_TDH_MASK, + base + QUADSPI_FLSHCR); + reg = qspi_readl(q, base + QUADSPI_SMPR); qspi_writel(q, reg & ~(QUADSPI_SMPR_FSDLY_MASK | QUADSPI_SMPR_FSPHS_MASK diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c index 42f4d82e9c5a..7ceb0ba27b75 100644 --- a/drivers/spi/spi-gpio.c +++ b/drivers/spi/spi-gpio.c @@ -368,8 +368,10 @@ static int spi_gpio_probe(struct platform_device *pdev) return -ENOMEM; status = devm_add_action_or_reset(&pdev->dev, spi_gpio_put, master); - if (status) + if (status) { + spi_master_put(master); return status; + } if (pdev->dev.of_node) status = spi_gpio_probe_dt(pdev, master); diff --git a/drivers/spi/spi-mxic.c b/drivers/spi/spi-mxic.c index 409bfa163647..69491f3a515d 100644 --- a/drivers/spi/spi-mxic.c +++ b/drivers/spi/spi-mxic.c @@ -145,8 +145,8 @@ #define LWR_SUSP_CTRL_EN BIT(31) #define DMAS_CTRL 0x9c -#define DMAS_CTRL_DIR_READ BIT(31) -#define DMAS_CTRL_EN BIT(30) +#define DMAS_CTRL_EN BIT(31) +#define DMAS_CTRL_DIR_READ BIT(30) #define DATA_STROB 0xa0 #define DATA_STROB_EDO_EN BIT(2) @@ -275,7 +275,7 @@ static void mxic_spi_hw_init(struct mxic_spi *mxic) writel(0, mxic->regs + HC_EN); writel(0, mxic->regs + LRD_CFG); writel(0, mxic->regs + LRD_CTRL); - writel(HC_CFG_NIO(1) | HC_CFG_TYPE(0, HC_CFG_TYPE_SPI_NAND) | + writel(HC_CFG_NIO(1) | HC_CFG_TYPE(0, HC_CFG_TYPE_SPI_NOR) | HC_CFG_SLV_ACT(0) | HC_CFG_MAN_CS_EN | HC_CFG_IDLE_SIO_LVL(1), mxic->regs + HC_CFG); } diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c index 6643ccdc2508..81c991c4ddbf 100644 --- a/drivers/spi/spi-orion.c +++ b/drivers/spi/spi-orion.c @@ -772,9 +772,6 @@ static int orion_spi_probe(struct platform_device *pdev) if (status < 0) goto out_rel_pm; - pm_runtime_mark_last_busy(&pdev->dev); - pm_runtime_put_autosuspend(&pdev->dev); - master->dev.of_node = pdev->dev.of_node; status = spi_register_master(master); if (status < 0) diff --git a/drivers/spi/spi-stm32-qspi.c b/drivers/spi/spi-stm32-qspi.c index 9ac6f9fe13cf..4e726929bb4f 100644 --- a/drivers/spi/spi-stm32-qspi.c +++ b/drivers/spi/spi-stm32-qspi.c @@ -528,7 +528,6 @@ static void stm32_qspi_release(struct stm32_qspi *qspi) stm32_qspi_dma_free(qspi); mutex_destroy(&qspi->lock); clk_disable_unprepare(qspi->clk); - spi_master_put(qspi->ctrl); } static int stm32_qspi_probe(struct platform_device *pdev) @@ -626,6 +625,8 @@ static int stm32_qspi_probe(struct platform_device *pdev) err: stm32_qspi_release(qspi); + spi_master_put(qspi->ctrl); + return ret; } diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index 255786f2e844..3ea9d8a3e6e8 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -627,6 +627,9 @@ static int spidev_release(struct inode *inode, struct file *filp) if (dofree) kfree(spidev); } +#ifdef CONFIG_SPI_SLAVE + spi_slave_abort(spidev->spi); +#endif mutex_unlock(&device_list_lock); return 0; |