Re: [PATCH RESEND 06/12] mmc: sdhci-pxav3: Move I/O clock to private data

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On 10/27/2014 02:28 PM, Ulf Hansson wrote:
On 21 October 2014 11:22, Sebastian Hesselbarth
<sebastian.hesselbarth@xxxxxxxxx> wrote:
As we are using references to the I/O clock throughout the driver,
move it to the private data. Also, in preparation for core clock,
rename it to clk_io.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx>
---
Cc: Chris Ball <chris@xxxxxxxxxx>
Cc: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Cc: "Antoine Ténart" <antoine.tenart@xxxxxxxxxxxxxxxxxx>
Cc: linux-mmc@xxxxxxxxxxxxxxx
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
  drivers/mmc/host/sdhci-pxav3.c | 24 +++++++++++++-----------
  1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/drivers/mmc/host/sdhci-pxav3.c b/drivers/mmc/host/sdhci-pxav3.c
index e52bbbb09d88..a34a589670e6 100644
--- a/drivers/mmc/host/sdhci-pxav3.c
+++ b/drivers/mmc/host/sdhci-pxav3.c
@@ -59,6 +59,7 @@
  #define SDCE_MISC_INT_EN       (1<<1)

  struct sdhci_pxa {
+       struct clk *clk_io;
         u8      power_mode;
  };

@@ -288,9 +289,7 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
         struct sdhci_host *host = NULL;
         struct sdhci_pxa *pxa = NULL;
         const struct of_device_id *match;
-
         int ret;
-       struct clk *clk;

         pxa = devm_kzalloc(&pdev->dev, sizeof(struct sdhci_pxa), GFP_KERNEL);
         if (!pxa)
@@ -310,14 +309,14 @@ static int sdhci_pxav3_probe(struct platform_device *pdev)
         pltfm_host = sdhci_priv(host);
         pltfm_host->priv = pxa;

-       clk = devm_clk_get(dev, NULL);
-       if (IS_ERR(clk)) {
+       pxa->clk_io = devm_clk_get(dev, NULL);
+       if (IS_ERR(pxa->clk_io)) {
                 dev_err(dev, "failed to get io clock\n");
-               ret = PTR_ERR(clk);
+               ret = PTR_ERR(pxa->clk_io);
                 goto err_clk_get;
         }
-       pltfm_host->clk = clk;
-       clk_prepare_enable(clk);
+       pltfm_host->clk = pxa->clk_io;

Is the above still needed?

+       clk_prepare_enable(pxa->clk_io);

Ulf,

I guess it is. It sets sdhci_pltfm_host's clk field which is used
by sdhci-pltfm.c to e.g. determine sdhci clock rate.

Sebastian
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