Re: [PATCH] mmc: sdhci-msm: detect if tassadar_dll is used by using core version

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

 




On 11/12/2020 3:31 AM, Dmitry Baryshkov wrote:
Detect if tassadar_dll is required by using core version rather than
just specifying it in the sdhci_msm_variant_info.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Cc: Veerabhadrarao Badiganti <vbadigan@xxxxxxxxxxxxxx>
---
  drivers/mmc/host/sdhci-msm.c | 15 +++++----------
  1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index 3451eb325513..dd67acab1660 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -248,7 +248,6 @@ struct sdhci_msm_variant_ops {
  struct sdhci_msm_variant_info {
  	bool mci_removed;
  	bool restore_dll_config;
-	bool uses_tassadar_dll;
  	const struct sdhci_msm_variant_ops *var_ops;
  	const struct sdhci_msm_offset *offset;
  };
@@ -2154,18 +2153,11 @@ static const struct sdhci_msm_variant_info sdm845_sdhci_var = {
  	.offset = &sdhci_msm_v5_offset,
  };
-static const struct sdhci_msm_variant_info sm8250_sdhci_var = {
-	.mci_removed = true,
-	.uses_tassadar_dll = true,
-	.var_ops = &v5_var_ops,
-	.offset = &sdhci_msm_v5_offset,
-};
-
  static const struct of_device_id sdhci_msm_dt_match[] = {
  	{.compatible = "qcom,sdhci-msm-v4", .data = &sdhci_msm_mci_var},
  	{.compatible = "qcom,sdhci-msm-v5", .data = &sdhci_msm_v5_var},
  	{.compatible = "qcom,sdm845-sdhci", .data = &sdm845_sdhci_var},
-	{.compatible = "qcom,sm8250-sdhci", .data = &sm8250_sdhci_var},
+	{.compatible = "qcom,sm8250-sdhci", .data = &sdm845_sdhci_var},
Since you have made it 'uses_tassadar_dll' check generic,
SM8250 should work with default compatible string (qcom,sdhci-msm-v5).
We can drop the entry to SM8250 from this table.

  	{.compatible = "qcom,sc7180-sdhci", .data = &sdm845_sdhci_var},
  	{},
  };
@@ -2249,7 +2241,6 @@ static int sdhci_msm_probe(struct platform_device *pdev)
  	msm_host->restore_dll_config = var_info->restore_dll_config;
  	msm_host->var_ops = var_info->var_ops;
  	msm_host->offset = var_info->offset;
-	msm_host->uses_tassadar_dll = var_info->uses_tassadar_dll;
msm_offset = msm_host->offset; @@ -2396,6 +2387,10 @@ static int sdhci_msm_probe(struct platform_device *pdev)
  	if (core_major == 1 && core_minor >= 0x49)
  		msm_host->updated_ddr_cfg = true;
+ if (core_major == 1 &&
+	    (core_minor == 0x6e || core_minor == 0x71 || core_minor == 0x72))
+		msm_host->uses_tassadar_dll = true;
+
This new registers that got introduced for supporting this new DLL are present on all versions > 0x71
So we can update check as core_minor >= 0x71.

And i dont find any target with SDCC controller minor version 0x6e.So we can remove check for version 0x6e.

  	ret = sdhci_msm_register_vreg(msm_host);
  	if (ret)
  		goto clk_disable;



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

  Powered by Linux