From: Akshu Agrawal <akshu.agrawal@amd.com>
To: unlisted-recipients:; (no To-header on input)
Cc: akshu.agrawal@amd.com, rrangel@google.com,
nehal-bakulchandra.shah@amd.com,
Adrian Hunter <adrian.hunter@intel.com>,
Ulf Hansson <ulf.hansson@linaro.org>,
linux-mmc@vger.kernel.org,
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH] mmc: sdhci-acpi: For amd device set driver type as MMC_SET_DRIVER_TYPE_A
Date: Tue, 23 Jun 2020 19:03:27 +0530 [thread overview]
Message-ID: <20200623133347.4598-1-akshu.agrawal@amd.com> (raw)
HS400/HS200/eMMC HS doesn't have Preset Value register.
Hence, sdhci_set_ios function overrides the value set by fmw to
SDHCI_CTRL_DRV_TYPE_B.
This patch sets drv_type to MMC_SET_DRIVER_TYPE_A
so that host_control2 register gets updated with the required
strength value.
Signed-off-by: Akshu Agrawal <akshu.agrawal@amd.com>
---
drivers/mmc/host/sdhci-acpi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index d8b76cb8698a..48ecbd0b180d 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -542,6 +542,7 @@ static int amd_select_drive_strength(struct mmc_card *card,
unsigned int max_dtr, int host_drv,
int card_drv, int *drv_type)
{
+ *drv_type = MMC_SET_DRIVER_TYPE_A;
return MMC_SET_DRIVER_TYPE_A;
}
--
2.20.1
next reply other threads:[~2020-06-23 13:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-23 13:33 Akshu Agrawal [this message]
2020-07-01 10:43 ` [PATCH] mmc: sdhci-acpi: For amd device set driver type as MMC_SET_DRIVER_TYPE_A Adrian Hunter
2020-07-06 14:49 ` Ulf Hansson
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