Re: [PATCH 1/2] mmc: sdhci-pxav3: Fix tabbing issue

[Jisheng Zhang <jszhang@marvell.com>]

On Wed, 2 Sep 2015 00:54:13 +0530
Vaibhav Hiremath <vaibhav.hiremath@linaro.org> wrote:

> There were some coding style issues where spaces have been used instead
> of tabs, for example, in macro definitions, alignment of function
> declarations/definitions, etc...
> 
> This patch fixes all such occurrences in the code.
> And also use BIT for bit definitions.
> 
> Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
> ---
>  drivers/mmc/host/sdhci-pxav3.c | 63 ++++++++++++++++++++++--------------------
>  1 file changed, 33 insertions(+), 30 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c
> index 946d37f..d02bc37 100644
> --- a/drivers/mmc/host/sdhci-pxav3.c
> +++ b/drivers/mmc/host/sdhci-pxav3.c
> @@ -39,24 +39,29 @@
>  #include "sdhci.h"
>  #include "sdhci-pltfm.h"
>  
> -#define PXAV3_RPM_DELAY_MS     50
> +#define PXAV3_RPM_DELAY_MS		50
>  
> -#define SD_CLOCK_BURST_SIZE_SETUP		0x10A
> -#define SDCLK_SEL	0x100
> -#define SDCLK_DELAY_SHIFT	9
> -#define SDCLK_DELAY_MASK	0x1f
> +#define SD_CLOCK_BURST_SIZE_SETUP	0x10A
> +#define SDCLK_SEL			0x100
> +#define  SDCLK_DELAY_SHIFT		9
> +#define  SDCLK_DELAY_MASK		0x1f
>  
> -#define SD_CFG_FIFO_PARAM       0x100
> -#define SDCFG_GEN_PAD_CLK_ON	(1<<6)
> -#define SDCFG_GEN_PAD_CLK_CNT_MASK	0xFF
> -#define SDCFG_GEN_PAD_CLK_CNT_SHIFT	24
> +#define SD_CFG_FIFO_PARAM		0x100
> +#define  SDCFG_GEN_PAD_CLK_ON		BIT(6)
> +#define  SDCFG_GEN_PAD_CLK_CNT_MASK	0xFF
> +#define  SDCFG_GEN_PAD_CLK_CNT_SHIFT	24
>  
> -#define SD_SPI_MODE          0x108
> -#define SD_CE_ATA_1          0x10C
> +#define SD_SPI_MODE			0x108
> +#define SD_CE_ATA_1			0x10C
>  
> -#define SD_CE_ATA_2          0x10E
> -#define SDCE_MISC_INT		(1<<2)
> -#define SDCE_MISC_INT_EN	(1<<1)
> +#define SD_CE_ATA_2			0x10E
> +#define  SDCE_MISC_INT			BIT(2)
> +#define  SDCE_MISC_INT_EN		BIT(1)

BIT or (1 << y) are both fine, is there any reason to change to BIT?
If so, there will be lots of source code need such changes.

> +
> +/* IO Power control */
> +#define IO_PWR_AKEY_ASFAR		0xbaba
> +#define IO_PWR_AKEY_ASSAR		0xeb10
> +#define IO_PWR_MMC1_PAD_1V8		BIT(2)
>  
>  struct sdhci_pxa {
>  	struct clk *clk_core;
> @@ -128,7 +133,7 @@ static int mv_conf_mbus_windows(struct platform_device *pdev,
>  }
>  
>  static int armada_38x_quirks(struct platform_device *pdev,
> -			     struct sdhci_host *host)
> +			struct sdhci_host *host)
>  {
>  	struct device_node *np = pdev->dev.of_node;
>  	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> @@ -136,8 +141,7 @@ static int armada_38x_quirks(struct platform_device *pdev,
>  	struct resource *res;
>  
>  	host->quirks |= SDHCI_QUIRK_MISSING_CAPS;
> -	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
> -					   "conf-sdio3");
> +	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "conf-sdio3");
>  	if (res) {
>  		pxa->sdio3_conf_reg = devm_ioremap_resource(&pdev->dev, res);
>  		if (IS_ERR(pxa->sdio3_conf_reg))
> @@ -284,10 +288,10 @@ static void pxav3_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs)
>  	 * FE-2946959
>  	 */
>  	if (pxa->sdio3_conf_reg) {
> -		u8 reg_val  = readb(pxa->sdio3_conf_reg);
> +		u8 reg_val = readb(pxa->sdio3_conf_reg);
>  
>  		if (uhs == MMC_TIMING_UHS_SDR50 ||
> -		    uhs == MMC_TIMING_UHS_DDR50) {
> +				uhs == MMC_TIMING_UHS_DDR50) {
>  			reg_val &= ~SDIO3_CONF_CLK_INV;
>  			reg_val |= SDIO3_CONF_SD_FB_CLK;
>  		} else {
> @@ -304,20 +308,20 @@ static void pxav3_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs)
>  }
>  
>  static const struct sdhci_ops pxav3_sdhci_ops = {
> -	.set_clock = sdhci_set_clock,
> -	.platform_send_init_74_clocks = pxav3_gen_init_74_clocks,
> -	.get_max_clock = sdhci_pltfm_clk_get_max_clock,
> -	.set_bus_width = sdhci_set_bus_width,
> -	.reset = pxav3_reset,
> -	.set_uhs_signaling = pxav3_set_uhs_signaling,
> +	.set_clock			= sdhci_set_clock,
> +	.platform_send_init_74_clocks	= pxav3_gen_init_74_clocks,
> +	.get_max_clock			= sdhci_pltfm_clk_get_max_clock,
> +	.set_bus_width			= sdhci_set_bus_width,
> +	.reset				= pxav3_reset,
> +	.set_uhs_signaling		= pxav3_set_uhs_signaling,
>  };

IMHO these two styles are both fine. For example, the mmc_sd_ops structure in
drivers/mmc/core/sd.c also follows the sdhci-pxav3's original coding style

>  
>  static struct sdhci_pltfm_data sdhci_pxav3_pdata = {
> -	.quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK
> +	.quirks	= SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK
>  		| SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC
>  		| SDHCI_QUIRK_32BIT_ADMA_SIZE
>  		| SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
> -	.ops = &pxav3_sdhci_ops,
> +	.ops	= &pxav3_sdhci_ops,
>  };
>  
>  #ifdef CONFIG_OF
> @@ -343,7 +347,7 @@ static struct sdhci_pxa_platdata *pxav3_get_mmc_pdata(struct device *dev)
>  		return NULL;
>  
>  	if (!of_property_read_u32(np, "mrvl,clk-delay-cycles",
> -				  &clk_delay_cycles))
> +				&clk_delay_cycles))
>  		pdata->clk_delay_cycles = clk_delay_cycles;
>  
>  	return pdata;
> @@ -433,8 +437,7 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
>  			host->mmc->pm_caps |= pdata->pm_caps;
>  
>  		if (gpio_is_valid(pdata->ext_cd_gpio)) {
> -			ret = mmc_gpio_request_cd(host->mmc, pdata->ext_cd_gpio,
> -						  0);
> +			ret = mmc_gpio_request_cd(host->mmc, pdata->ext_cd_gpio, 0);
>  			if (ret) {
>  				dev_err(mmc_dev(host->mmc),
>  					"failed to allocate card detect gpio\n");