[PATCH v2 05/17] mmc: rockchip_sdhci: Add set_clock and config_dll sdhci_ops
Jonas Karlman
jonas at kwiboo.se
Tue Apr 18 18:46:29 CEST 2023
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 at kwiboo.se>
---
v2:
- No change
drivers/mmc/rockchip_sdhci.c | 29 +++++++++++++++++++++++++++--
1 file changed, 27 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/rockchip_sdhci.c b/drivers/mmc/rockchip_sdhci.c
index 2a30974df501..bc9838ac7c45 100644
--- a/drivers/mmc/rockchip_sdhci.c
+++ b/drivers/mmc/rockchip_sdhci.c
@@ -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,
};
--
2.40.0
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