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Message-ID: <20110331153433.GA26709@ponder.secretlab.ca>
Date: Thu, 31 Mar 2011 09:34:33 -0600
From: Grant Likely <grant.likely@...retlab.ca>
To: Shawn Guo <shawn.guo@...aro.org>
Cc: devicetree-discuss@...ts.ozlabs.org, linux-mmc@...r.kernel.org,
patches@...aro.org, linaro-dev@...ts.linaro.org,
linux-kernel@...r.kernel.org, sameo@...ux.intel.com
Subject: Re: [PATCH 2/5] mmc: sdhci: eliminate sdhci_of_host and sdhci_of_data
On Fri, Mar 25, 2011 at 04:48:48PM +0800, Shawn Guo wrote:
> The patch is to migrate the use of sdhci_of_host and sdhci_of_data
> to sdhci_pltfm_host and sdhci_pltfm_data, so that the former pair can
> be eliminated.
>
> Signed-off-by: Shawn Guo <shawn.guo@...aro.org>
Reviewed-by: Grant Likely <grant.likely@...retlab.ca>
> ---
> drivers/mmc/host/sdhci-of-core.c | 30 +++++++++++++++---------------
> drivers/mmc/host/sdhci-of-esdhc.c | 36 +++++++++++++++++++-----------------
> drivers/mmc/host/sdhci-of-hlwd.c | 20 +++++++++++---------
> drivers/mmc/host/sdhci-of.h | 15 +++------------
> drivers/mmc/host/sdhci-pltfm.h | 4 ++++
> 5 files changed, 52 insertions(+), 53 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-of-core.c b/drivers/mmc/host/sdhci-of-core.c
> index dd84124..a6c0132 100644
> --- a/drivers/mmc/host/sdhci-of-core.c
> +++ b/drivers/mmc/host/sdhci-of-core.c
> @@ -59,7 +59,7 @@ void sdhci_be32bs_writel(struct sdhci_host *host, u32 val, int reg)
>
> void sdhci_be32bs_writew(struct sdhci_host *host, u16 val, int reg)
> {
> - struct sdhci_of_host *of_host = sdhci_priv(host);
> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
> int base = reg & ~0x3;
> int shift = (reg & 0x2) * 8;
>
> @@ -69,10 +69,10 @@ void sdhci_be32bs_writew(struct sdhci_host *host, u16 val, int reg)
> * Postpone this write, we must do it together with a
> * command write that is down below.
> */
> - of_host->xfer_mode_shadow = val;
> + pltfm_host->xfer_mode_shadow = val;
> return;
> case SDHCI_COMMAND:
> - sdhci_be32bs_writel(host, val << 16 | of_host->xfer_mode_shadow,
> + sdhci_be32bs_writel(host, val << 16 | pltfm_host->xfer_mode_shadow,
> SDHCI_TRANSFER_MODE);
> return;
> }
> @@ -128,9 +128,9 @@ static int __devinit sdhci_of_probe(struct platform_device *ofdev,
> const struct of_device_id *match)
> {
> struct device_node *np = ofdev->dev.of_node;
> - struct sdhci_of_data *sdhci_of_data = match->data;
> + struct sdhci_pltfm_data *pdata = match->data;
> struct sdhci_host *host;
> - struct sdhci_of_host *of_host;
> + struct sdhci_pltfm_host *pltfm_host;
> const __be32 *clk;
> int size;
> int ret;
> @@ -138,11 +138,11 @@ static int __devinit sdhci_of_probe(struct platform_device *ofdev,
> if (!of_device_is_available(np))
> return -ENODEV;
>
> - host = sdhci_alloc_host(&ofdev->dev, sizeof(*of_host));
> + host = sdhci_alloc_host(&ofdev->dev, sizeof(*pltfm_host));
> if (IS_ERR(host))
> return -ENOMEM;
>
> - of_host = sdhci_priv(host);
> + pltfm_host = sdhci_priv(host);
> dev_set_drvdata(&ofdev->dev, host);
>
> host->ioaddr = of_iomap(np, 0);
> @@ -158,9 +158,9 @@ static int __devinit sdhci_of_probe(struct platform_device *ofdev,
> }
>
> host->hw_name = dev_name(&ofdev->dev);
> - if (sdhci_of_data) {
> - host->quirks = sdhci_of_data->quirks;
> - host->ops = &sdhci_of_data->ops;
> + if (pdata) {
> + host->quirks = pdata->quirks;
> + host->ops = &pdata->ops;
> }
>
> if (of_get_property(np, "sdhci,auto-cmd12", NULL))
> @@ -175,7 +175,7 @@ static int __devinit sdhci_of_probe(struct platform_device *ofdev,
>
> clk = of_get_property(np, "clock-frequency", &size);
> if (clk && size == sizeof(*clk) && *clk)
> - of_host->clock = be32_to_cpup(clk);
> + pltfm_host->clock = be32_to_cpup(clk);
>
> ret = sdhci_add_host(host);
> if (ret)
> @@ -205,12 +205,12 @@ static int __devexit sdhci_of_remove(struct platform_device *ofdev)
>
> static const struct of_device_id sdhci_of_match[] = {
> #ifdef CONFIG_MMC_SDHCI_OF_ESDHC
> - { .compatible = "fsl,mpc8379-esdhc", .data = &sdhci_esdhc, },
> - { .compatible = "fsl,mpc8536-esdhc", .data = &sdhci_esdhc, },
> - { .compatible = "fsl,esdhc", .data = &sdhci_esdhc, },
> + { .compatible = "fsl,mpc8379-esdhc", .data = &sdhci_esdhc_pdata, },
> + { .compatible = "fsl,mpc8536-esdhc", .data = &sdhci_esdhc_pdata, },
> + { .compatible = "fsl,esdhc", .data = &sdhci_esdhc_pdata, },
> #endif
> #ifdef CONFIG_MMC_SDHCI_OF_HLWD
> - { .compatible = "nintendo,hollywood-sdhci", .data = &sdhci_hlwd, },
> + { .compatible = "nintendo,hollywood-sdhci", .data = &sdhci_hlwd_pdata, },
> #endif
> { .compatible = "generic-sdhci", },
> {},
> diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
> index fcd0e1f..702a98b 100644
> --- a/drivers/mmc/host/sdhci-of-esdhc.c
> +++ b/drivers/mmc/host/sdhci-of-esdhc.c
> @@ -60,30 +60,32 @@ static int esdhc_of_enable_dma(struct sdhci_host *host)
>
> static unsigned int esdhc_of_get_max_clock(struct sdhci_host *host)
> {
> - struct sdhci_of_host *of_host = sdhci_priv(host);
> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
>
> - return of_host->clock;
> + return pltfm_host->clock;
> }
>
> static unsigned int esdhc_of_get_min_clock(struct sdhci_host *host)
> {
> - struct sdhci_of_host *of_host = sdhci_priv(host);
> + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
>
> - return of_host->clock / 256 / 16;
> + return pltfm_host->clock / 256 / 16;
> }
>
> -struct sdhci_of_data sdhci_esdhc = {
> +static struct sdhci_ops sdhci_esdhc_ops = {
> + .read_l = sdhci_be32bs_readl,
> + .read_w = esdhc_readw,
> + .read_b = sdhci_be32bs_readb,
> + .write_l = sdhci_be32bs_writel,
> + .write_w = esdhc_writew,
> + .write_b = esdhc_writeb,
> + .set_clock = esdhc_set_clock,
> + .enable_dma = esdhc_of_enable_dma,
> + .get_max_clock = esdhc_of_get_max_clock,
> + .get_min_clock = esdhc_of_get_min_clock,
> +};
> +
> +struct sdhci_pltfm_data sdhci_esdhc_pdata = {
> .quirks = ESDHC_DEFAULT_QUIRKS,
> - .ops = {
> - .read_l = sdhci_be32bs_readl,
> - .read_w = esdhc_readw,
> - .read_b = sdhci_be32bs_readb,
> - .write_l = sdhci_be32bs_writel,
> - .write_w = esdhc_writew,
> - .write_b = esdhc_writeb,
> - .set_clock = esdhc_set_clock,
> - .enable_dma = esdhc_of_enable_dma,
> - .get_max_clock = esdhc_of_get_max_clock,
> - .get_min_clock = esdhc_of_get_min_clock,
> - },
> + .ops = &sdhci_esdhc_ops,
> };
> diff --git a/drivers/mmc/host/sdhci-of-hlwd.c b/drivers/mmc/host/sdhci-of-hlwd.c
> index 68ddb75..380e896 100644
> --- a/drivers/mmc/host/sdhci-of-hlwd.c
> +++ b/drivers/mmc/host/sdhci-of-hlwd.c
> @@ -51,15 +51,17 @@ static void sdhci_hlwd_writeb(struct sdhci_host *host, u8 val, int reg)
> udelay(SDHCI_HLWD_WRITE_DELAY);
> }
>
> -struct sdhci_of_data sdhci_hlwd = {
> +static struct sdhci_ops sdhci_hlwd_ops = {
> + .read_l = sdhci_be32bs_readl,
> + .read_w = sdhci_be32bs_readw,
> + .read_b = sdhci_be32bs_readb,
> + .write_l = sdhci_hlwd_writel,
> + .write_w = sdhci_hlwd_writew,
> + .write_b = sdhci_hlwd_writeb,
> +};
> +
> +struct sdhci_pltfm_data sdhci_hlwd_pdata = {
> .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
> SDHCI_QUIRK_32BIT_DMA_SIZE,
> - .ops = {
> - .read_l = sdhci_be32bs_readl,
> - .read_w = sdhci_be32bs_readw,
> - .read_b = sdhci_be32bs_readb,
> - .write_l = sdhci_hlwd_writel,
> - .write_w = sdhci_hlwd_writew,
> - .write_b = sdhci_hlwd_writeb,
> - },
> + .ops = &sdhci_hlwd_ops,
> };
> diff --git a/drivers/mmc/host/sdhci-of.h b/drivers/mmc/host/sdhci-of.h
> index ad09ad9..5bdb5e7 100644
> --- a/drivers/mmc/host/sdhci-of.h
> +++ b/drivers/mmc/host/sdhci-of.h
> @@ -18,16 +18,7 @@
>
> #include <linux/types.h>
> #include "sdhci.h"
> -
> -struct sdhci_of_data {
> - unsigned int quirks;
> - struct sdhci_ops ops;
> -};
> -
> -struct sdhci_of_host {
> - unsigned int clock;
> - u16 xfer_mode_shadow;
> -};
> +#include "sdhci-pltfm.h"
>
> extern u32 sdhci_be32bs_readl(struct sdhci_host *host, int reg);
> extern u16 sdhci_be32bs_readw(struct sdhci_host *host, int reg);
> @@ -36,7 +27,7 @@ extern void sdhci_be32bs_writel(struct sdhci_host *host, u32 val, int reg);
> extern void sdhci_be32bs_writew(struct sdhci_host *host, u16 val, int reg);
> extern void sdhci_be32bs_writeb(struct sdhci_host *host, u8 val, int reg);
>
> -extern struct sdhci_of_data sdhci_esdhc;
> -extern struct sdhci_of_data sdhci_hlwd;
> +extern struct sdhci_pltfm_data sdhci_esdhc_pdata;
> +extern struct sdhci_pltfm_data sdhci_hlwd_pdata;
>
> #endif /* __SDHCI_OF_H */
> diff --git a/drivers/mmc/host/sdhci-pltfm.h b/drivers/mmc/host/sdhci-pltfm.h
> index a3e4be0..12afe86 100644
> --- a/drivers/mmc/host/sdhci-pltfm.h
> +++ b/drivers/mmc/host/sdhci-pltfm.h
> @@ -19,6 +19,10 @@
> struct sdhci_pltfm_host {
> struct clk *clk;
> u32 scratchpad; /* to handle quirks across io-accessor calls */
> +
> + /* migrate from sdhci_of_host */
> + unsigned int clock;
> + u16 xfer_mode_shadow;
> };
>
> extern struct sdhci_host *sdhci_pltfm_init(struct platform_device *pdev,
> --
> 1.7.1
>
>
> _______________________________________________
> linaro-dev mailing list
> linaro-dev@...ts.linaro.org
> http://lists.linaro.org/mailman/listinfo/linaro-dev
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