Re: [PATCH v2 05/13] mmc: mediatek: make hs400_tune_response only for mt8173

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 





On 10/09/2017 01:35 PM, Chaotian Jing wrote:
the origin design of hs400_tune_response is for mt8173 because of
mt8173 has a special design. for doing that, we add a new member
"compatible", by now it's only for mt8173.

Signed-off-by: Chaotian Jing <chaotian.jing@xxxxxxxxxxxx>
---
  drivers/mmc/host/mtk-sd.c | 8 ++++++--
  1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 643c795..e8f8ad9 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -317,6 +317,7 @@ struct msdc_delay_phase {
  struct msdc_host {
  	struct device *dev;
  	const struct mtk_mmc_compatible *dev_comp;
+	const char *compatible;
  	struct mmc_host *mmc;	/* mmc structure */
  	int cmd_rsp;
@@ -666,7 +667,8 @@ static void msdc_set_mclk(struct msdc_host *host, unsigned char timing, u32 hz)
  		       host->base + PAD_CMD_TUNE);
  	}
- if (timing == MMC_TIMING_MMC_HS400)
+	if (timing == MMC_TIMING_MMC_HS400 &&
+	    !strcmp(host->compatible, "mediatek,mt8173-mmc"))

You can add another value to mtk_mmc_compatible as you did in all the following patches.

Regards,
Matthias

  		sdr_set_field(host->base + PAD_CMD_TUNE,
  			      MSDC_PAD_TUNE_CMDRRDLY,
  			      host->hs400_cmd_int_delay);
@@ -1594,7 +1596,8 @@ static int msdc_execute_tuning(struct mmc_host *mmc, u32 opcode)
  	struct msdc_host *host = mmc_priv(mmc);
  	int ret;
- if (host->hs400_mode)
+	if (host->hs400_mode &&
+	    !strcmp(host->compatible, "mediatek,mt8173-mmc"))
  		ret = hs400_tune_response(mmc, opcode);
  	else
  		ret = msdc_tune_response(mmc, opcode);
@@ -1745,6 +1748,7 @@ static int msdc_drv_probe(struct platform_device *pdev)
host->dev = &pdev->dev;
  	host->dev_comp = of_id->data;
+	host->compatible = of_id->compatible;
  	host->mmc = mmc;
  	host->src_clk_freq = clk_get_rate(host->src_clk);
  	/* Set host parameters to mmc */

--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux