Instead of guarding this at compile time, always call register_sdclk
with the correct clk_ops, like in linux.
Currently only ZynqMP and default arasan ops are supported.
Signed-off-by: Steffen Trumtrar <s.trumt...@pengutronix.de>
---
Instead of guarding the zynqmp functions at compile time and introducing
possible run-time problems, copy more of the linux driver and add
soc-specific clk_ops.
As the zynqmp_pm_* functions are only defined for ARCH_ZYNQMP we need to
add stub function definitions for other platforms that might use the
arasan-sdhci driver.
---
drivers/mci/arasan-sdhci.c | 53 ++++++++++++++++++++++++-----------
include/mach/zynqmp/firmware-zynqmp.h | 11 ++++++++
2 files changed, 47 insertions(+), 17 deletions(-)
diff --git a/drivers/mci/arasan-sdhci.c b/drivers/mci/arasan-sdhci.c
index b7dd98049f..5187dbe468 100644
--- a/drivers/mci/arasan-sdhci.c
+++ b/drivers/mci/arasan-sdhci.c
@@ -65,6 +65,8 @@ struct arasan_sdhci_host {
struct mci_host mci;
struct sdhci sdhci;
unsigned int quirks; /* Arasan deviations from spec */
+ const struct clk_ops *sdcardclk_ops;
+ const struct clk_ops *sampleclk_ops;
struct sdhci_arasan_clk_data clk_data;
/* Controller does not have CD wired and will not function normally without */
#define SDHCI_ARASAN_QUIRK_FORCE_CDTEST BIT(0)
@@ -352,7 +354,7 @@ static void arasan_dt_read_clk_phase(struct device *dev,
*
* Return: 0 on success and error value on error
*/
-static int arasan_zynqmp_sampleclk_set_phase(struct clk_hw *hw, int degrees)
+static __maybe_unused int arasan_zynqmp_sampleclk_set_phase(struct clk_hw *hw,
int degrees)
{
struct sdhci_arasan_clk_data *clk_data =
container_of(hw, struct sdhci_arasan_clk_data, sampleclk_hw);
@@ -402,8 +404,8 @@ static int arasan_zynqmp_sampleclk_set_phase(struct clk_hw
*hw, int degrees)
return ret;
}
-static unsigned long arasan_zynqmp_sampleclk_recalc_rate(struct clk_hw *hw,
- unsigned long
parent_rate)
+static unsigned long arasan_sampleclk_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
{
struct sdhci_arasan_clk_data *clk_data =
container_of(hw, struct sdhci_arasan_clk_data, sdcardclk_hw);
@@ -424,7 +426,7 @@ static unsigned long
arasan_zynqmp_sampleclk_recalc_rate(struct clk_hw *hw,
*
* Return: 0 on success and error value on error
*/
-static int arasan_zynqmp_sdcardclk_set_phase(struct clk_hw *hw, int degrees)
+static __maybe_unused int arasan_zynqmp_sdcardclk_set_phase(struct clk_hw *hw,
int degrees)
{
struct sdhci_arasan_clk_data *clk_data =
container_of(hw, struct sdhci_arasan_clk_data, sdcardclk_hw);
@@ -474,8 +476,8 @@ static int arasan_zynqmp_sdcardclk_set_phase(struct clk_hw
*hw, int degrees)
return ret;
}
-static unsigned long arasan_zynqmp_sdcardclk_recalc_rate(struct clk_hw *hw,
- unsigned long
parent_rate)
+static unsigned long arasan_sdcardclk_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
{
struct sdhci_arasan_clk_data *clk_data =
container_of(hw, struct sdhci_arasan_clk_data, sdcardclk_hw);
@@ -486,13 +488,21 @@ static unsigned long
arasan_zynqmp_sdcardclk_recalc_rate(struct clk_hw *hw,
return host->actual_clock;
};
-static const struct clk_ops clk_sampleclk_ops = {
- .recalc_rate = arasan_zynqmp_sampleclk_recalc_rate,
+static const struct clk_ops arasan_sampleclk_ops = {
+ .recalc_rate = arasan_sampleclk_recalc_rate,
+};
+
+static const struct clk_ops arasan_sdcardclk_ops = {
+ .recalc_rate = arasan_sdcardclk_recalc_rate,
+};
+
+static const struct clk_ops zynqmp_sampleclk_ops = {
+ .recalc_rate = arasan_sampleclk_recalc_rate,
.set_phase = arasan_zynqmp_sampleclk_set_phase,
};
-static const struct clk_ops clk_sdcardclk_ops = {
- .recalc_rate = arasan_zynqmp_sdcardclk_recalc_rate,
+static const struct clk_ops zynqmp_sdcardclk_ops = {
+ .recalc_rate = arasan_sdcardclk_recalc_rate,
.set_phase = arasan_zynqmp_sdcardclk_set_phase,
};
@@ -510,10 +520,11 @@ static const struct clk_ops clk_sdcardclk_ops = {
* Return: 0 on success and error value on error
*/
static int
-arasan_sdhci_register_sampleclk(struct sdhci_arasan_clk_data *clk_data,
+arasan_sdhci_register_sampleclk(struct arasan_sdhci_host *sdhci_arasan,
struct clk *clk_xin,
struct device *dev)
{
+ struct sdhci_arasan_clk_data *clk_data = &sdhci_arasan->clk_data;
struct device_node *np = dev->of_node;
struct clk_init_data sampleclk_init = {};
const char *clk_name;
@@ -529,7 +540,7 @@ arasan_sdhci_register_sampleclk(struct
sdhci_arasan_clk_data *clk_data,
clk_name = __clk_get_name(clk_xin);
sampleclk_init.parent_names = &clk_name;
sampleclk_init.num_parents = 1;
- sampleclk_init.ops = &clk_sampleclk_ops;
+ sampleclk_init.ops = sdhci_arasan->sampleclk_ops;
clk_data->sampleclk_hw.init = &sampleclk_init;
clk_data->sampleclk = clk_register(dev, &clk_data->sampleclk_hw);
@@ -559,10 +570,11 @@ arasan_sdhci_register_sampleclk(struct
sdhci_arasan_clk_data *clk_data,
* Return: 0 on success and error value on error
*/
static int
-arasan_sdhci_register_sdcardclk(struct sdhci_arasan_clk_data *clk_data,
+arasan_sdhci_register_sdcardclk(struct arasan_sdhci_host *sdhci_arasan,
struct clk *clk_xin,
struct device *dev)
{
+ struct sdhci_arasan_clk_data *clk_data = &sdhci_arasan->clk_data;
struct device_node *np = dev->of_node;
struct clk_init_data sdcardclk_init = {};
const char *clk_name;
@@ -577,7 +589,7 @@ arasan_sdhci_register_sdcardclk(struct
sdhci_arasan_clk_data *clk_data,
clk_name = __clk_get_name(clk_xin);
sdcardclk_init.parent_names = &clk_name;
- sdcardclk_init.ops = &clk_sdcardclk_ops;
+ sdcardclk_init.ops = sdhci_arasan->sdcardclk_ops;
sdcardclk_init.num_parents = 1;
clk_data->sdcardclk_hw.init = &sdcardclk_init;
@@ -615,7 +627,7 @@ arasan_sdhci_register_sdcardclk(struct
sdhci_arasan_clk_data *clk_data,
*
* Return: 0 on success and error value on error
*/
-static int arasan_sdhci_register_sdclk(struct sdhci_arasan_clk_data
*sdhci_arasan,
+static int arasan_sdhci_register_sdclk(struct arasan_sdhci_host *sdhci_arasan,
struct clk *clk_xin,
struct device *dev)
{
@@ -772,8 +784,15 @@ static int arasan_sdhci_probe(struct device *dev)
mci->f_min = 50000000 / 256;
- if (IS_ENABLED(CONFIG_ARCH_ZYNQMP))
- arasan_sdhci_register_sdclk(&arasan_sdhci->clk_data, clk_xin,
dev);
+ if (of_device_is_compatible(np, "xlnx,zynqmp-8.9a")) {
+ arasan_sdhci->sdcardclk_ops = &zynqmp_sdcardclk_ops;
+ arasan_sdhci->sampleclk_ops = &zynqmp_sampleclk_ops;
+ } else {
+ arasan_sdhci->sdcardclk_ops = &arasan_sdcardclk_ops;
+ arasan_sdhci->sampleclk_ops = &arasan_sampleclk_ops;
+ }
+
+ arasan_sdhci_register_sdclk(arasan_sdhci, clk_xin, dev);
arasan_dt_parse_clk_phases(dev, &arasan_sdhci->clk_data);
diff --git a/include/mach/zynqmp/firmware-zynqmp.h
b/include/mach/zynqmp/firmware-zynqmp.h
index 00c63058f4..9f833189d3 100644
--- a/include/mach/zynqmp/firmware-zynqmp.h
+++ b/include/mach/zynqmp/firmware-zynqmp.h
@@ -119,8 +119,19 @@ struct zynqmp_eemi_ops {
const struct zynqmp_eemi_ops *zynqmp_pm_get_eemi_ops(void);
+#if defined(CONFIG_ARCH_ZYNQMP)
int zynqmp_pm_set_sd_tapdelay(u32 node_id, u32 type, u32 value);
int zynqmp_pm_sd_dll_reset(u32 node_id, u32 type);
+#else
+static inline int zynqmp_pm_set_sd_tapdelay(u32 node_id, u32 type, u32 value)
+{
+ return -ENOSYS;
+}
+static inline int zynqmp_pm_sd_dll_reset(u32 node_id, u32 type)
+{
+ return -ENOSYS;
+}
+#endif
int zynqmp_pm_write_ggs(u32 index, u32 value);
int zynqmp_pm_read_ggs(u32 index, u32 *value);
---
base-commit: aa03dc194997eabf157118b76b0ab5ef88a9faff
change-id: 20240408-v2024-03-0-topic-arasan-fixes-199c8b0710dc
Best regards,
--
Steffen Trumtrar <s.trumt...@pengutronix.de>
