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mmc: rockchip_sdhci: Add set_clock and config_dll sdhci_ops

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Add support for the set_clock and config_dll sdhci_ops. Use of these ops
will allow configuration of DLL while the output clock is disabled.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This commit is contained in:
Jonas Karlman 2023-04-18 16:46:29 +00:00 committed by Kever Yang
parent 0030d49715
commit 7e74522d5f
1 changed files with 27 additions and 2 deletions
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29
drivers/mmc/rockchip_sdhci.c
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@ -139,6 +139,9 @@ struct sdhci_data {
*/
int (*set_ios_post)(struct sdhci_host *host);
void (*set_clock)(struct sdhci_host *host, u32 div);
int (*config_dll)(struct sdhci_host *host, u32 clock, bool enable);
/**
* set_enhanced_strobe() - Set HS400 Enhanced Strobe config
*
@ -430,6 +433,15 @@ static int rockchip_sdhci_set_ios_post(struct sdhci_host *host)
return 0;
}
static void rockchip_sdhci_set_clock(struct sdhci_host *host, u32 div)
{
struct rockchip_sdhc *priv = container_of(host, struct rockchip_sdhc, host);
struct sdhci_data *data = (struct sdhci_data *)dev_get_driver_data(priv->dev);
if (data->set_clock)
data->set_clock(host, div);
}
static int rockchip_sdhci_execute_tuning(struct mmc *mmc, u8 opcode)
{
struct rockchip_sdhc *priv = dev_get_priv(mmc->dev);
@ -491,6 +503,17 @@ static int rockchip_sdhci_execute_tuning(struct mmc *mmc, u8 opcode)
return ret;
}
static int rockchip_sdhci_config_dll(struct sdhci_host *host, u32 clock, bool enable)
{
struct rockchip_sdhc *priv = container_of(host, struct rockchip_sdhc, host);
struct sdhci_data *data = (struct sdhci_data *)dev_get_driver_data(priv->dev);
if (data->config_dll)
return data->config_dll(host, clock, enable);
return 0;
}
static int rockchip_sdhci_set_enhanced_strobe(struct sdhci_host *host)
{
struct rockchip_sdhc *priv = container_of(host, struct rockchip_sdhc, host);
@ -503,9 +526,11 @@ static int rockchip_sdhci_set_enhanced_strobe(struct sdhci_host *host)
}
static struct sdhci_ops rockchip_sdhci_ops = {
.set_ios_post = rockchip_sdhci_set_ios_post,
.platform_execute_tuning = &rockchip_sdhci_execute_tuning,
.set_control_reg = rockchip_sdhci_set_control_reg,
.set_ios_post = rockchip_sdhci_set_ios_post,
.set_clock = rockchip_sdhci_set_clock,
.platform_execute_tuning = rockchip_sdhci_execute_tuning,
.config_dll = rockchip_sdhci_config_dll,
.set_enhanced_strobe = rockchip_sdhci_set_enhanced_strobe,
};