summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--arch/arm64/boot/dts/qcom/msm8996.dtsi34
-rw-r--r--drivers/clk/qcom/gcc-msm8996.c8
-rw-r--r--drivers/mmc/host/sdhci-msm.c39
3 files changed, 67 insertions, 14 deletions
diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
index 0be1db5..71183c0 100644
--- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
@@ -515,8 +515,42 @@
<&gcc GCC_SDCC2_APPS_CLK>,
<&xo_board>;
bus-width = <4>;
+ power-domains = <&rpmpd 0>;
+ operating-points-v2 = <&sdhc_opp_table>;
};
+ sdhc_opp_table: opp_table {
+ compatible = "operating-points-v2";
+
+ opp@400000 {
+ opp-hz = /bits/ 64 <400000>;
+ };
+
+ opp@20000000 {
+ opp-hz = /bits/ 64 <20000000>;
+ };
+
+ opp@25000000 {
+ opp-hz = /bits/ 64 <25000000>;
+ };
+
+ opp@50000000 {
+ opp-hz = /bits/ 64 <50000000>;
+ };
+
+ opp@96000000 {
+ opp-hz = /bits/ 64 <96000000>;
+ };
+
+ opp@192000000 {
+ opp-hz = /bits/ 64 <192000000>;
+ };
+
+ opp@384000000 {
+ opp-hz = /bits/ 64 <384000000>;
+ };
+ };
+
msmgpio: pinctrl@1010000 {
compatible = "qcom,msm8996-pinctrl";
reg = <0x01010000 0x300000>;
diff --git a/drivers/clk/qcom/gcc-msm8996.c b/drivers/clk/qcom/gcc-msm8996.c
index 7ddec88..3803469 100644
--- a/drivers/clk/qcom/gcc-msm8996.c
+++ b/drivers/clk/qcom/gcc-msm8996.c
@@ -460,7 +460,7 @@ static struct clk_rcg2 sdcc1_apps_clk_src = {
.name = "sdcc1_apps_clk_src",
.parent_names = gcc_xo_gpll0_gpll4_gpll0_early_div,
.num_parents = 4,
- .ops = &clk_rcg2_floor_ops,
+ .ops = &clk_rcg2_ops,
},
};
@@ -505,7 +505,7 @@ static struct clk_rcg2 sdcc2_apps_clk_src = {
.name = "sdcc2_apps_clk_src",
.parent_names = gcc_xo_gpll0_gpll4,
.num_parents = 3,
- .ops = &clk_rcg2_floor_ops,
+ .ops = &clk_rcg2_ops,
},
};
@@ -519,7 +519,7 @@ static struct clk_rcg2 sdcc3_apps_clk_src = {
.name = "sdcc3_apps_clk_src",
.parent_names = gcc_xo_gpll0_gpll4,
.num_parents = 3,
- .ops = &clk_rcg2_floor_ops,
+ .ops = &clk_rcg2_ops,
},
};
@@ -543,7 +543,7 @@ static struct clk_rcg2 sdcc4_apps_clk_src = {
.name = "sdcc4_apps_clk_src",
.parent_names = gcc_xo_gpll0,
.num_parents = 2,
- .ops = &clk_rcg2_floor_ops,
+ .ops = &clk_rcg2_ops,
},
};
diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index fc73e56..cbc5a12 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -21,6 +21,7 @@
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/iopoll.h>
+#include <linux/pm_opp.h>
#include "sdhci-pltfm.h"
@@ -131,6 +132,7 @@ struct sdhci_msm_host {
struct clk *pclk; /* SDHC peripheral bus clock */
struct clk *bus_clk; /* SDHC bus voter clock */
struct clk *xo_clk; /* TCXO clk needed for FLL feature of cm_dll*/
+ struct opp_table *opp_table;
unsigned long clk_rate;
struct mmc_host *mmc;
bool use_14lpp_dll_reset;
@@ -140,7 +142,7 @@ struct sdhci_msm_host {
bool use_cdclp533;
};
-static unsigned int msm_get_clock_rate_for_bus_mode(struct sdhci_host *host,
+static long unsigned int msm_get_clock_rate_for_bus_mode(struct sdhci_host *host,
unsigned int clock)
{
struct mmc_ios ios = host->mmc->ios;
@@ -165,16 +167,22 @@ static void msm_set_clock_rate_for_bus_mode(struct sdhci_host *host,
struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
struct mmc_ios curr_ios = host->mmc->ios;
int rc;
+ struct device *dev = &msm_host->pdev->dev;
+ struct dev_pm_opp *opp;
+ long unsigned int freq;
+
+ freq = msm_get_clock_rate_for_bus_mode(host, clock);
+ opp = dev_pm_opp_find_freq_floor(dev, &freq);
+ if (IS_ERR(opp))
+ pr_err("%s: failed to find OPP for %u at timing %d\n",
+ mmc_hostname(host->mmc), clock, curr_ios.timing);
+
+ rc = dev_pm_opp_set_rate(dev, freq);
+ if (rc)
+ pr_err("%s: error in setting opp\n", __func__);
+
+ msm_host->clk_rate = freq;
- clock = msm_get_clock_rate_for_bus_mode(host, clock);
- rc = clk_set_rate(msm_host->clk, clock);
- if (rc) {
- pr_err("%s: Failed to set clock at rate %u at timing %d\n",
- mmc_hostname(host->mmc), clock,
- curr_ios.timing);
- return;
- }
- msm_host->clk_rate = clock;
pr_debug("%s: Setting clock at rate %lu at timing %d\n",
mmc_hostname(host->mmc), clk_get_rate(msm_host->clk),
curr_ios.timing);
@@ -1268,6 +1276,13 @@ static int sdhci_msm_probe(struct platform_device *pdev)
goto clk_disable;
}
+ /* Set up the OPP table */
+ msm_host->opp_table = dev_pm_opp_set_clkname(&pdev->dev, "core");
+
+ ret = dev_pm_opp_of_add_table(&pdev->dev);
+ if (ret)
+ dev_warn(&pdev->dev, "%s: No OPP table specified\n", __func__);
+
pm_runtime_get_noresume(&pdev->dev);
pm_runtime_set_active(&pdev->dev);
pm_runtime_enable(&pdev->dev);
@@ -1289,6 +1304,8 @@ pm_runtime_disable:
pm_runtime_disable(&pdev->dev);
pm_runtime_set_suspended(&pdev->dev);
pm_runtime_put_noidle(&pdev->dev);
+ dev_pm_opp_of_remove_table(&pdev->dev);
+ dev_pm_opp_put_clkname(msm_host->opp_table);
clk_disable:
clk_disable_unprepare(msm_host->clk);
pclk_disable:
@@ -1314,6 +1331,8 @@ static int sdhci_msm_remove(struct platform_device *pdev)
pm_runtime_get_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
pm_runtime_put_noidle(&pdev->dev);
+ dev_pm_opp_of_remove_table(&pdev->dev);
+ dev_pm_opp_put_clkname(msm_host->opp_table);
clk_disable_unprepare(msm_host->clk);
clk_disable_unprepare(msm_host->pclk);