diff options
Diffstat (limited to 'arch/arm/plat-samsung')
| -rw-r--r-- | arch/arm/plat-samsung/adc.c | 1 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/clock.c | 27 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/s3c64xx-spi.h | 3 |
3 files changed, 29 insertions, 2 deletions
diff --git a/arch/arm/plat-samsung/adc.c b/arch/arm/plat-samsung/adc.c index 04d9521..e8f2be2 100644 --- a/arch/arm/plat-samsung/adc.c +++ b/arch/arm/plat-samsung/adc.c @@ -435,7 +435,6 @@ static int s3c_adc_suspend(struct platform_device *pdev, pm_message_t state) static int s3c_adc_resume(struct platform_device *pdev) { struct adc_device *adc = platform_get_drvdata(pdev); - unsigned long flags; clk_enable(adc->clk); enable_irq(adc->irq); diff --git a/arch/arm/plat-samsung/clock.c b/arch/arm/plat-samsung/clock.c index 90a2051..e8d20b0 100644 --- a/arch/arm/plat-samsung/clock.c +++ b/arch/arm/plat-samsung/clock.c @@ -48,6 +48,9 @@ #include <plat/clock.h> #include <plat/cpu.h> +#include <linux/serial_core.h> +#include <plat/regs-serial.h> /* for s3c24xx_uart_devs */ + /* clock information */ static LIST_HEAD(clocks); @@ -65,6 +68,28 @@ static int clk_null_enable(struct clk *clk, int enable) return 0; } +static int dev_is_s3c_uart(struct device *dev) +{ + struct platform_device **pdev = s3c24xx_uart_devs; + int i; + for (i = 0; i < ARRAY_SIZE(s3c24xx_uart_devs); i++, pdev++) + if (*pdev && dev == &(*pdev)->dev) + return 1; + return 0; +} + +/* + * Serial drivers call get_clock() very early, before platform bus + * has been set up, this requires a special check to let them get + * a proper clock + */ + +static int dev_is_platform_device(struct device *dev) +{ + return dev->bus == &platform_bus_type || + (dev->bus == NULL && dev_is_s3c_uart(dev)); +} + /* Clock API calls */ struct clk *clk_get(struct device *dev, const char *id) @@ -73,7 +98,7 @@ struct clk *clk_get(struct device *dev, const char *id) struct clk *clk = ERR_PTR(-ENOENT); int idno; - if (dev == NULL || dev->bus != &platform_bus_type) + if (dev == NULL || !dev_is_platform_device(dev)) idno = -1; else idno = to_platform_device(dev)->id; diff --git a/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h b/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h index e5aba8f..b226f740 100644 --- a/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h +++ b/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h @@ -32,6 +32,8 @@ struct s3c64xx_spi_csinfo { * struct s3c64xx_spi_info - SPI Controller defining structure * @src_clk_nr: Clock source index for the CLK_CFG[SPI_CLKSEL] field. * @src_clk_name: Platform name of the corresponding clock. + * @clk_from_cmu: If the SPI clock/prescalar control block is present + * by the platform's clock-management-unit and not in SPI controller. * @num_cs: Number of CS this controller emulates. * @cfg_gpio: Configure pins for this SPI controller. * @fifo_lvl_mask: All tx fifo_lvl fields start at offset-6 @@ -41,6 +43,7 @@ struct s3c64xx_spi_csinfo { struct s3c64xx_spi_info { int src_clk_nr; char *src_clk_name; + bool clk_from_cmu; int num_cs; |