Merge 1e664b6f58 on remote branch

Change-Id: Ie44273adaf40fe8e369bba9d3b46a9509fc13c03
This commit is contained in:
Linux Build Service Account committed 2024-01-30 20:24:00 -08:00
commit 4d9cb96bfb
1 file changed
+42 -21
+42 -21
View File
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2012-2021, The Linux Foundation. All rights reserved.
* Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
* Copyright (c) 2021-2023 Qualcomm Innovation Center, Inc. All rights reserved.
*
* drivers/mmc/host/sdhci-msm.c - Qualcomm Technologies, Inc. MSM SDHCI Platform
* driver source file
@@ -5042,6 +5042,44 @@ static int sdhci_msm_notify_load(struct sdhci_host *host, enum mmc_load state)
return 0;
}
static int sdhci_msm_gcc_reset(struct device *dev, struct sdhci_host *host)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
struct sdhci_msm_host *msm_host = pltfm_host->priv;
struct reset_control *reset = msm_host->core_reset;
int ret = -EOPNOTSUPP;
if (!reset) {
dev_err(dev, "unable to acquire core_reset\n");
goto out;
}
ret = reset_control_assert(reset);
if (ret) {
dev_err(dev, "core_reset assert failed %d\n", ret);
goto out;
}
/*
* The hardware requirement for delay between assert/deassert
* is at least 3-4 sleep clock (32.7KHz) cycles, which comes to
* ~125us (4/32768). To be on the safe side add 200us delay.
*/
usleep_range(200, 210);
ret = reset_control_deassert(reset);
if (ret) {
dev_err(dev, "core_reset deassert failed %d\n", ret);
goto out;
}
usleep_range(200, 210);
out:
return ret;
}
static void sdhci_msm_hw_reset(struct sdhci_host *host)
{
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -5063,28 +5101,10 @@ static void sdhci_msm_hw_reset(struct sdhci_host *host)
host->mmc->cqe_enabled = false;
}
ret = reset_control_assert(msm_host->core_reset);
if (ret) {
dev_err(&pdev->dev, "%s: core_reset assert failed, err = %d\n",
__func__, ret);
goto out;
}
/*
* The hardware requirement for delay between assert/deassert
* is at least 3-4 sleep clock (32.7KHz) cycles, which comes to
* ~125us (4/32768). To be on the safe side add 200us delay.
*/
usleep_range(200, 210);
ret = reset_control_deassert(msm_host->core_reset);
if (ret)
dev_err(&pdev->dev, "%s: core_reset deassert failed, err = %d\n",
__func__, ret);
sdhci_msm_gcc_reset(&pdev->dev, host);
sdhci_msm_registers_restore(host);
msm_host->reg_store = false;
out:
return;
}
@@ -5411,6 +5431,7 @@ static int sdhci_msm_probe(struct platform_device *pdev)
goto pltfm_free;
}
sdhci_msm_gcc_reset(&pdev->dev, host);
/* Setup Clocks */
/* Setup SDCC bus voter clock. */