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-rw-r--r--target/linux/bcm27xx/patches-5.4/950-0365-clk-raspberrypi-Also-support-v3d-clock.patch647
1 files changed, 647 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0365-clk-raspberrypi-Also-support-v3d-clock.patch b/target/linux/bcm27xx/patches-5.4/950-0365-clk-raspberrypi-Also-support-v3d-clock.patch
new file mode 100644
index 0000000000..b2a9363ad4
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.4/950-0365-clk-raspberrypi-Also-support-v3d-clock.patch
@@ -0,0 +1,647 @@
+From e2262c8ab4755ab574580611d7da22509f07871c Mon Sep 17 00:00:00 2001
+From: popcornmix <popcornmix@gmail.com>
+Date: Wed, 21 Aug 2019 14:55:56 +0100
+Subject: [PATCH] clk-raspberrypi: Also support v3d clock
+
+Signed-off-by: popcornmix <popcornmix@gmail.com>
+---
+ drivers/clk/bcm/clk-raspberrypi.c | 501 ++++++++++++++++++++++++------
+ 1 file changed, 412 insertions(+), 89 deletions(-)
+
+--- a/drivers/clk/bcm/clk-raspberrypi.c
++++ b/drivers/clk/bcm/clk-raspberrypi.c
+@@ -15,33 +15,103 @@
+ #include <linux/io.h>
+ #include <linux/module.h>
+ #include <linux/platform_device.h>
+-
++#include <dt-bindings/clock/bcm2835.h>
+ #include <soc/bcm2835/raspberrypi-firmware.h>
+
+ #define RPI_FIRMWARE_ARM_CLK_ID 0x00000003
++#define RPI_FIRMWARE_V3D_CLK_ID 0x00000005
+
+ #define RPI_FIRMWARE_STATE_ENABLE_BIT BIT(0)
+ #define RPI_FIRMWARE_STATE_WAIT_BIT BIT(1)
+
+-/*
+- * Even though the firmware interface alters 'pllb' the frequencies are
+- * provided as per 'pllb_arm'. We need to scale before passing them trough.
+- */
+-#define RPI_FIRMWARE_PLLB_ARM_DIV_RATE 2
+-
+ #define A2W_PLL_FRAC_BITS 20
+
++#define SOC_BCM2835 BIT(0)
++#define SOC_BCM2711 BIT(1)
++#define SOC_ALL (SOC_BCM2835 | SOC_BCM2711)
++
+ struct raspberrypi_clk {
+ struct device *dev;
+ struct rpi_firmware *firmware;
+ struct platform_device *cpufreq;
++};
++
++typedef int (*raspberrypi_clk_register)(struct raspberrypi_clk *rpi,
++ const void *data);
++
++
++/* assignment helper macros for different clock types */
++#define _REGISTER(f, s, ...) { .clk_register = (raspberrypi_clk_register)f, \
++ .supported = s, \
++ .data = __VA_ARGS__ }
++#define REGISTER_PLL(s, ...) _REGISTER(&raspberrypi_register_pll, \
++ s, \
++ &(struct raspberrypi_pll_data) \
++ {__VA_ARGS__})
++#define REGISTER_PLL_DIV(s, ...) _REGISTER(&raspberrypi_register_pll_divider, \
++ s, \
++ &(struct raspberrypi_pll_divider_data) \
++ {__VA_ARGS__})
++#define REGISTER_CLK(s, ...) _REGISTER(&raspberrypi_register_clock, \
++ s, \
++ &(struct raspberrypi_clock_data) \
++ {__VA_ARGS__})
++
++
++struct raspberrypi_pll_data {
++ const char *name;
++ const char *const *parents;
++ int num_parents;
++ u32 clock_id;
++};
++
++struct raspberrypi_clock_data {
++ const char *name;
++ const char *const *parents;
++ int num_parents;
++ u32 flags;
++ u32 clock_id;
++};
++
++struct raspberrypi_pll_divider_data {
++ const char *name;
++ const char *divider_name;
++ const char *lookup;
++ const char *source_pll;
++
++ u32 fixed_divider;
++ u32 flags;
++ u32 clock_id;
++};
+
+- unsigned long min_rate;
+- unsigned long max_rate;
++struct raspberrypi_clk_desc {
++ raspberrypi_clk_register clk_register;
++ unsigned int supported;
++ const void *data;
++};
+
+- struct clk_hw pllb;
+- struct clk_hw *pllb_arm;
+- struct clk_lookup *pllb_arm_lookup;
++struct raspberrypi_clock {
++ struct clk_hw hw;
++ struct raspberrypi_clk *rpi;
++ u32 min_rate;
++ u32 max_rate;
++ const struct raspberrypi_clock_data *data;
++};
++
++struct raspberrypi_pll {
++ struct clk_hw hw;
++ struct raspberrypi_clk *rpi;
++ u32 min_rate;
++ u32 max_rate;
++ const struct raspberrypi_pll_data *data;
++};
++
++struct raspberrypi_pll_divider {
++ struct clk_divider div;
++ struct raspberrypi_clk *rpi;
++ u32 min_rate;
++ u32 max_rate;
++ const struct raspberrypi_pll_divider_data *data;
+ };
+
+ /*
+@@ -83,56 +153,49 @@ static int raspberrypi_clock_property(st
+ return 0;
+ }
+
+-static int raspberrypi_fw_pll_is_on(struct clk_hw *hw)
++static int raspberrypi_fw_is_on(struct raspberrypi_clk *rpi, u32 clock_id, const char *name)
+ {
+- struct raspberrypi_clk *rpi = container_of(hw, struct raspberrypi_clk,
+- pllb);
+ u32 val = 0;
+ int ret;
+
+ ret = raspberrypi_clock_property(rpi->firmware,
+ RPI_FIRMWARE_GET_CLOCK_STATE,
+- RPI_FIRMWARE_ARM_CLK_ID, &val);
++ clock_id, &val);
+ if (ret)
+ return 0;
+
+ return !!(val & RPI_FIRMWARE_STATE_ENABLE_BIT);
+ }
+
+-
+-static unsigned long raspberrypi_fw_pll_get_rate(struct clk_hw *hw,
+- unsigned long parent_rate)
++static unsigned long raspberrypi_fw_get_rate(struct raspberrypi_clk *rpi,
++ u32 clock_id, const char *name, unsigned long parent_rate)
+ {
+- struct raspberrypi_clk *rpi = container_of(hw, struct raspberrypi_clk,
+- pllb);
+ u32 val = 0;
+ int ret;
+
+ ret = raspberrypi_clock_property(rpi->firmware,
+ RPI_FIRMWARE_GET_CLOCK_RATE,
+- RPI_FIRMWARE_ARM_CLK_ID,
++ clock_id,
+ &val);
+ if (ret)
+- return ret;
+-
+- return val * RPI_FIRMWARE_PLLB_ARM_DIV_RATE;
++ dev_err_ratelimited(rpi->dev, "Failed to get %s frequency: %d",
++ name, ret);
++ return val;
+ }
+
+-static int raspberrypi_fw_pll_set_rate(struct clk_hw *hw, unsigned long rate,
+- unsigned long parent_rate)
++static int raspberrypi_fw_set_rate(struct raspberrypi_clk *rpi,
++ u32 clock_id, const char *name, u32 rate,
++ unsigned long parent_rate)
+ {
+- struct raspberrypi_clk *rpi = container_of(hw, struct raspberrypi_clk,
+- pllb);
+- u32 new_rate = rate / RPI_FIRMWARE_PLLB_ARM_DIV_RATE;
+ int ret;
+
+ ret = raspberrypi_clock_property(rpi->firmware,
+ RPI_FIRMWARE_SET_CLOCK_RATE,
+- RPI_FIRMWARE_ARM_CLK_ID,
+- &new_rate);
++ clock_id,
++ &rate);
+ if (ret)
+ dev_err_ratelimited(rpi->dev, "Failed to change %s frequency: %d",
+- clk_hw_get_name(hw), ret);
++ name, ret);
+
+ return ret;
+ }
+@@ -141,16 +204,18 @@ static int raspberrypi_fw_pll_set_rate(s
+ * Sadly there is no firmware rate rounding interface. We borrowed it from
+ * clk-bcm2835.
+ */
+-static int raspberrypi_pll_determine_rate(struct clk_hw *hw,
++static int raspberrypi_determine_rate(struct raspberrypi_clk *rpi,
++ u32 clock_id, const char *name, unsigned long min_rate, unsigned long max_rate,
+ struct clk_rate_request *req)
+ {
+- struct raspberrypi_clk *rpi = container_of(hw, struct raspberrypi_clk,
+- pllb);
++#if 1
++ req->rate = clamp(req->rate, min_rate, max_rate);
++#else
+ u64 div, final_rate;
+ u32 ndiv, fdiv;
+
+ /* We can't use req->rate directly as it would overflow */
+- final_rate = clamp(req->rate, rpi->min_rate, rpi->max_rate);
++ final_rate = clamp(req->rate, min_rate, max_rate);
+
+ div = (u64)final_rate << A2W_PLL_FRAC_BITS;
+ do_div(div, req->best_parent_rate);
+@@ -163,9 +228,129 @@ static int raspberrypi_pll_determine_rat
+
+ req->rate = final_rate >> A2W_PLL_FRAC_BITS;
+
++#endif
+ return 0;
+ }
+
++static int raspberrypi_fw_clock_is_on(struct clk_hw *hw)
++{
++ struct raspberrypi_clock *pll = container_of(hw, struct raspberrypi_clock, hw);
++ struct raspberrypi_clk *rpi = pll->rpi;
++ const struct raspberrypi_clock_data *data = pll->data;
++
++ return raspberrypi_fw_is_on(rpi, data->clock_id, data->name);
++}
++
++static unsigned long raspberrypi_fw_clock_get_rate(struct clk_hw *hw,
++ unsigned long parent_rate)
++{
++ struct raspberrypi_clock *pll = container_of(hw, struct raspberrypi_clock, hw);
++ struct raspberrypi_clk *rpi = pll->rpi;
++ const struct raspberrypi_clock_data *data = pll->data;
++
++ return raspberrypi_fw_get_rate(rpi, data->clock_id, data->name, parent_rate);
++}
++
++static int raspberrypi_fw_clock_set_rate(struct clk_hw *hw, unsigned long rate,
++ unsigned long parent_rate)
++{
++ struct raspberrypi_clock *pll = container_of(hw, struct raspberrypi_clock, hw);
++ struct raspberrypi_clk *rpi = pll->rpi;
++ const struct raspberrypi_clock_data *data = pll->data;
++
++ return raspberrypi_fw_set_rate(rpi, data->clock_id, data->name, rate, parent_rate);
++}
++
++static int raspberrypi_clock_determine_rate(struct clk_hw *hw,
++ struct clk_rate_request *req)
++{
++ struct raspberrypi_clock *pll = container_of(hw, struct raspberrypi_clock, hw);
++ struct raspberrypi_clk *rpi = pll->rpi;
++ const struct raspberrypi_clock_data *data = pll->data;
++
++ return raspberrypi_determine_rate(rpi, data->clock_id, data->name, pll->min_rate, pll->max_rate, req);
++}
++
++static int raspberrypi_fw_pll_is_on(struct clk_hw *hw)
++{
++ struct raspberrypi_pll *pll = container_of(hw, struct raspberrypi_pll, hw);
++ struct raspberrypi_clk *rpi = pll->rpi;
++ const struct raspberrypi_pll_data *data = pll->data;
++
++ return raspberrypi_fw_is_on(rpi, data->clock_id, data->name);
++}
++
++static unsigned long raspberrypi_fw_pll_get_rate(struct clk_hw *hw,
++ unsigned long parent_rate)
++{
++ struct raspberrypi_pll *pll = container_of(hw, struct raspberrypi_pll, hw);
++ struct raspberrypi_clk *rpi = pll->rpi;
++ const struct raspberrypi_pll_data *data = pll->data;
++
++ return raspberrypi_fw_get_rate(rpi, data->clock_id, data->name, parent_rate);
++}
++
++static int raspberrypi_fw_pll_set_rate(struct clk_hw *hw, unsigned long rate,
++ unsigned long parent_rate)
++{
++ struct raspberrypi_pll *pll = container_of(hw, struct raspberrypi_pll, hw);
++ struct raspberrypi_clk *rpi = pll->rpi;
++ const struct raspberrypi_pll_data *data = pll->data;
++
++ return raspberrypi_fw_set_rate(rpi, data->clock_id, data->name, rate, parent_rate);
++}
++
++static int raspberrypi_pll_determine_rate(struct clk_hw *hw,
++ struct clk_rate_request *req)
++{
++ struct raspberrypi_pll *pll = container_of(hw, struct raspberrypi_pll, hw);
++ struct raspberrypi_clk *rpi = pll->rpi;
++ const struct raspberrypi_pll_data *data = pll->data;
++
++ return raspberrypi_determine_rate(rpi, data->clock_id, data->name, pll->min_rate, pll->max_rate, req);
++}
++
++
++static int raspberrypi_fw_pll_div_is_on(struct clk_hw *hw)
++{
++ struct raspberrypi_pll_divider *pll = container_of(hw, struct raspberrypi_pll_divider, div.hw);
++ struct raspberrypi_clk *rpi = pll->rpi;
++ const struct raspberrypi_pll_divider_data *data = pll->data;
++
++ return raspberrypi_fw_is_on(rpi, data->clock_id, data->name);
++}
++
++static unsigned long raspberrypi_fw_pll_div_get_rate(struct clk_hw *hw,
++ unsigned long parent_rate)
++{
++ struct raspberrypi_pll_divider *pll = container_of(hw, struct raspberrypi_pll_divider, div.hw);
++ struct raspberrypi_clk *rpi = pll->rpi;
++ const struct raspberrypi_pll_divider_data *data = pll->data;
++
++ return raspberrypi_fw_get_rate(rpi, data->clock_id, data->name, parent_rate);
++}
++
++static int raspberrypi_fw_pll_div_set_rate(struct clk_hw *hw, unsigned long rate,
++ unsigned long parent_rate)
++{
++ struct raspberrypi_pll_divider *pll = container_of(hw, struct raspberrypi_pll_divider, div.hw);
++ struct raspberrypi_clk *rpi = pll->rpi;
++ const struct raspberrypi_pll_divider_data *data = pll->data;
++
++ return raspberrypi_fw_set_rate(rpi, data->clock_id, data->name, rate, parent_rate);
++}
++
++static int raspberrypi_pll_div_determine_rate(struct clk_hw *hw,
++ struct clk_rate_request *req)
++{
++ struct raspberrypi_pll_divider *pll = container_of(hw, struct raspberrypi_pll_divider, div.hw);
++ struct raspberrypi_clk *rpi = pll->rpi;
++ const struct raspberrypi_pll_divider_data *data = pll->data;
++
++ return raspberrypi_determine_rate(rpi, data->clock_id, data->name, pll->min_rate, pll->max_rate, req);
++}
++
++
+ static const struct clk_ops raspberrypi_firmware_pll_clk_ops = {
+ .is_prepared = raspberrypi_fw_pll_is_on,
+ .recalc_rate = raspberrypi_fw_pll_get_rate,
+@@ -173,87 +358,225 @@ static const struct clk_ops raspberrypi_
+ .determine_rate = raspberrypi_pll_determine_rate,
+ };
+
+-static int raspberrypi_register_pllb(struct raspberrypi_clk *rpi)
++static const struct clk_ops raspberrypi_firmware_pll_divider_clk_ops = {
++ .is_prepared = raspberrypi_fw_pll_div_is_on,
++ .recalc_rate = raspberrypi_fw_pll_div_get_rate,
++ .set_rate = raspberrypi_fw_pll_div_set_rate,
++ .determine_rate = raspberrypi_pll_div_determine_rate,
++};
++
++static const struct clk_ops raspberrypi_firmware_clk_ops = {
++ .is_prepared = raspberrypi_fw_clock_is_on,
++ .recalc_rate = raspberrypi_fw_clock_get_rate,
++ .set_rate = raspberrypi_fw_clock_set_rate,
++ .determine_rate = raspberrypi_clock_determine_rate,
++};
++
++
++static int raspberrypi_get_clock_range(struct raspberrypi_clk *rpi, u32 clock_id, u32 *min_rate, u32 *max_rate)
+ {
+- u32 min_rate = 0, max_rate = 0;
++ int ret;
++
++ /* Get min & max rates set by the firmware */
++ ret = raspberrypi_clock_property(rpi->firmware,
++ RPI_FIRMWARE_GET_MIN_CLOCK_RATE,
++ clock_id,
++ min_rate);
++ if (ret) {
++ dev_err(rpi->dev, "Failed to get clock %d min freq: %d (%d)\n",
++ clock_id, *min_rate, ret);
++ return ret;
++ }
++
++ ret = raspberrypi_clock_property(rpi->firmware,
++ RPI_FIRMWARE_GET_MAX_CLOCK_RATE,
++ clock_id,
++ max_rate);
++ if (ret) {
++ dev_err(rpi->dev, "Failed to get clock %d max freq: %d (%d)\n",
++ clock_id, *max_rate, ret);
++ return ret;
++ }
++ return 0;
++}
++
++
++static int raspberrypi_register_pll(struct raspberrypi_clk *rpi,
++ const struct raspberrypi_pll_data *data)
++{
++ struct raspberrypi_pll *pll;
+ struct clk_init_data init;
+ int ret;
+
+ memset(&init, 0, sizeof(init));
+
+ /* All of the PLLs derive from the external oscillator. */
+- init.parent_names = (const char *[]){ "osc" };
+- init.num_parents = 1;
+- init.name = "pllb";
++ init.parent_names = data->parents;
++ init.num_parents = data->num_parents;
++ init.name = data->name;
+ init.ops = &raspberrypi_firmware_pll_clk_ops;
+ init.flags = CLK_GET_RATE_NOCACHE | CLK_IGNORE_UNUSED;
+
+- /* Get min & max rates set by the firmware */
+- ret = raspberrypi_clock_property(rpi->firmware,
+- RPI_FIRMWARE_GET_MIN_CLOCK_RATE,
+- RPI_FIRMWARE_ARM_CLK_ID,
+- &min_rate);
++ pll = kzalloc(sizeof(*pll), GFP_KERNEL);
++ if (!pll)
++ return -ENOMEM;
++ pll->rpi = rpi;
++ pll->data = data;
++ pll->hw.init = &init;
++
++ ret = raspberrypi_get_clock_range(rpi, data->clock_id, &pll->min_rate, &pll->max_rate);
+ if (ret) {
+- dev_err(rpi->dev, "Failed to get %s min freq: %d\n",
+- init.name, ret);
++ dev_err(rpi->dev, "%s: raspberrypi_get_clock_range(%s) failed: %d\n", __func__, init.name, ret);
+ return ret;
+ }
+
+- ret = raspberrypi_clock_property(rpi->firmware,
+- RPI_FIRMWARE_GET_MAX_CLOCK_RATE,
+- RPI_FIRMWARE_ARM_CLK_ID,
+- &max_rate);
++ ret = devm_clk_hw_register(rpi->dev, &pll->hw);
+ if (ret) {
+- dev_err(rpi->dev, "Failed to get %s max freq: %d\n",
+- init.name, ret);
++ dev_err(rpi->dev, "%s: devm_clk_hw_register(%s) failed: %d\n", __func__, init.name, ret);
+ return ret;
+ }
++ return 0;
++}
+
+- if (!min_rate || !max_rate) {
+- dev_err(rpi->dev, "Unexpected frequency range: min %u, max %u\n",
+- min_rate, max_rate);
+- return -EINVAL;
+- }
++static int
++raspberrypi_register_pll_divider(struct raspberrypi_clk *rpi,
++ const struct raspberrypi_pll_divider_data *data)
++{
++ struct raspberrypi_pll_divider *divider;
++ struct clk_init_data init;
++ int ret;
++
++ memset(&init, 0, sizeof(init));
++
++ init.parent_names = &data->source_pll;
++ init.num_parents = 1;
++ init.name = data->name;
++ init.ops = &raspberrypi_firmware_pll_divider_clk_ops;
++ init.flags = data->flags | CLK_IGNORE_UNUSED;
+
+- dev_info(rpi->dev, "CPU frequency range: min %u, max %u\n",
+- min_rate, max_rate);
++ divider = devm_kzalloc(rpi->dev, sizeof(*divider), GFP_KERNEL);
++ if (!divider)
++ return -ENOMEM;
++
++ divider->div.hw.init = &init;
++ divider->rpi = rpi;
++ divider->data = data;
++
++ ret = raspberrypi_get_clock_range(rpi, data->clock_id, &divider->min_rate, &divider->max_rate);
++ if (ret) {
++ dev_err(rpi->dev, "%s: raspberrypi_get_clock_range(%s) failed: %d\n", __func__, init.name, ret);
++ return ret;
++ }
+
+- rpi->min_rate = min_rate * RPI_FIRMWARE_PLLB_ARM_DIV_RATE;
+- rpi->max_rate = max_rate * RPI_FIRMWARE_PLLB_ARM_DIV_RATE;
++ ret = devm_clk_hw_register(rpi->dev, &divider->div.hw);
++ if (ret) {
++ dev_err(rpi->dev, "%s: devm_clk_hw_register(%s) failed: %d\n", __func__, init.name, ret);
++ return ret;
++ }
+
+- rpi->pllb.init = &init;
++ /*
++ * PLLH's channels have a fixed divide by 10 afterwards, which
++ * is what our consumers are actually using.
++ */
++ if (data->fixed_divider != 0) {
++ struct clk_lookup *lookup;
++ struct clk_hw *clk = clk_hw_register_fixed_factor(rpi->dev,
++ data->divider_name,
++ data->name,
++ CLK_SET_RATE_PARENT,
++ 1,
++ data->fixed_divider);
++ if (IS_ERR(clk)) {
++ dev_err(rpi->dev, "%s: clk_hw_register_fixed_factor(%s) failed: %ld\n", __func__, init.name, PTR_ERR(clk));
++ return PTR_ERR(clk);
++ }
++ if (data->lookup) {
++ lookup = clkdev_hw_create(clk, NULL, data->lookup);
++ if (IS_ERR(lookup)) {
++ dev_err(rpi->dev, "%s: clk_hw_register_fixed_factor(%s) failed: %ld\n", __func__, init.name, PTR_ERR(lookup));
++ return PTR_ERR(lookup);
++ }
++ }
++ }
+
+- return devm_clk_hw_register(rpi->dev, &rpi->pllb);
++ return 0;
+ }
+
+-static int raspberrypi_register_pllb_arm(struct raspberrypi_clk *rpi)
++static int raspberrypi_register_clock(struct raspberrypi_clk *rpi,
++ const struct raspberrypi_clock_data *data)
+ {
+- rpi->pllb_arm = clk_hw_register_fixed_factor(rpi->dev,
+- "pllb_arm", "pllb",
+- CLK_SET_RATE_PARENT | CLK_GET_RATE_NOCACHE,
+- 1, 2);
+- if (IS_ERR(rpi->pllb_arm)) {
+- dev_err(rpi->dev, "Failed to initialize pllb_arm\n");
+- return PTR_ERR(rpi->pllb_arm);
+- }
++ struct raspberrypi_clock *clock;
++ struct clk_init_data init;
++ struct clk *clk;
++ int ret;
++
++ memset(&init, 0, sizeof(init));
++ init.parent_names = data->parents;
++ init.num_parents = data->num_parents;
++ init.name = data->name;
++ init.flags = data->flags | CLK_IGNORE_UNUSED;
+
+- rpi->pllb_arm_lookup = clkdev_hw_create(rpi->pllb_arm, NULL, "cpu0");
+- if (!rpi->pllb_arm_lookup) {
+- dev_err(rpi->dev, "Failed to initialize pllb_arm_lookup\n");
+- clk_hw_unregister_fixed_factor(rpi->pllb_arm);
++ init.ops = &raspberrypi_firmware_clk_ops;
++
++ clock = devm_kzalloc(rpi->dev, sizeof(*clock), GFP_KERNEL);
++ if (!clock)
+ return -ENOMEM;
+- }
+
++ clock->rpi = rpi;
++ clock->data = data;
++ clock->hw.init = &init;
++
++ ret = raspberrypi_get_clock_range(rpi, data->clock_id, &clock->min_rate, &clock->max_rate);
++ if (ret) {
++ dev_err(rpi->dev, "%s: raspberrypi_get_clock_range(%s) failed: %d\n", __func__, init.name, ret);
++ return ret;
++ }
++ clk = devm_clk_register(rpi->dev, &clock->hw);
++ if (IS_ERR(clk)) {
++ dev_err(rpi->dev, "%s: devm_clk_register(%s) failed: %ld\n", __func__, init.name, PTR_ERR(clk));
++ return PTR_ERR(clk);
++ }
++ ret = clk_register_clkdev(clk, init.name, NULL);
++ if (ret) {
++ dev_err(rpi->dev, "%s: clk_register_clkdev(%s) failed: %d\n", __func__, init.name, ret);
++ return ret;
++ }
+ return 0;
+ }
+
++
++/*
++ * the real definition of all the pll, pll_dividers and clocks
++ * these make use of the above REGISTER_* macros
++ */
++static const struct raspberrypi_clk_desc clk_desc_array[] = {
++ /* the PLL + PLL dividers */
++ [BCM2835_CLOCK_V3D] = REGISTER_CLK(
++ SOC_ALL,
++ .name = "v3d",
++ .parents = (const char *[]){ "osc" },
++ .num_parents = 1,
++ .clock_id = RPI_FIRMWARE_V3D_CLK_ID),
++ [BCM2835_PLLB_ARM] = REGISTER_PLL_DIV(
++ SOC_ALL,
++ .name = "pllb",
++ .source_pll = "osc",
++ .divider_name = "pllb_arm",
++ .lookup = "cpu0",
++ .fixed_divider = 1,
++ .clock_id = RPI_FIRMWARE_ARM_CLK_ID,
++ .flags = CLK_SET_RATE_PARENT),
++};
++
+ static int raspberrypi_clk_probe(struct platform_device *pdev)
+ {
+ struct device_node *firmware_node;
+ struct device *dev = &pdev->dev;
+ struct rpi_firmware *firmware;
+ struct raspberrypi_clk *rpi;
+- int ret;
++ const struct raspberrypi_clk_desc *desc;
++ const size_t asize = ARRAY_SIZE(clk_desc_array);
++ int i;
+
+ firmware_node = of_find_compatible_node(NULL, NULL,
+ "raspberrypi,bcm2835-firmware");
+@@ -275,16 +598,16 @@ static int raspberrypi_clk_probe(struct
+ rpi->firmware = firmware;
+ platform_set_drvdata(pdev, rpi);
+
+- ret = raspberrypi_register_pllb(rpi);
+- if (ret) {
+- dev_err(dev, "Failed to initialize pllb, %d\n", ret);
+- return ret;
++ for (i = 0; i < asize; i++) {
++ desc = &clk_desc_array[i];
++ if (desc->clk_register && desc->data /*&&
++ (desc->supported & pdata->soc)*/) {
++ int ret = desc->clk_register(rpi, desc->data);
++ if (ret)
++ return ret;
++ }
+ }
+
+- ret = raspberrypi_register_pllb_arm(rpi);
+- if (ret)
+- return ret;
+-
+ rpi->cpufreq = platform_device_register_data(dev, "raspberrypi-cpufreq",
+ -1, NULL, 0);
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-28 07:07:25 +0000