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 --- 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, };