diff options
Diffstat (limited to 'target/linux/ipq806x/patches-4.4/001-add-API-register-brd-clks-bckwrds-cmptblt.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-4.4/001-add-API-register-brd-clks-bckwrds-cmptblt.patch | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/target/linux/ipq806x/patches-4.4/001-add-API-register-brd-clks-bckwrds-cmptblt.patch b/target/linux/ipq806x/patches-4.4/001-add-API-register-brd-clks-bckwrds-cmptblt.patch deleted file mode 100644 index b9056e9618..0000000000 --- a/target/linux/ipq806x/patches-4.4/001-add-API-register-brd-clks-bckwrds-cmptblt.patch +++ /dev/null @@ -1,135 +0,0 @@ -From ee15faffef11309219aa87a24efc86f6dd13f7cb Mon Sep 17 00:00:00 2001 -From: Stephen Boyd <sboyd@codeaurora.org> -Date: Mon, 26 Oct 2015 17:11:32 -0700 -Subject: clk: qcom: common: Add API to register board clocks backwards - compatibly - -We want to put the XO board clocks into the dt files, but we also -need to be backwards compatible with an older dtb. Add an API to -the common code to do this. This also makes a place for us to -handle the case when the RPM clock driver is enabled and we don't -want to register the fixed factor clock. - -Cc: Georgi Djakov <georgi.djakov@linaro.org> -Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> ---- - drivers/clk/qcom/common.c | 87 +++++++++++++++++++++++++++++++++++++++++++++++ - drivers/clk/qcom/common.h | 4 +++ - 2 files changed, 91 insertions(+) - ---- a/drivers/clk/qcom/common.c -+++ b/drivers/clk/qcom/common.c -@@ -17,6 +17,7 @@ - #include <linux/platform_device.h> - #include <linux/clk-provider.h> - #include <linux/reset-controller.h> -+#include <linux/of.h> - - #include "common.h" - #include "clk-rcg.h" -@@ -88,6 +89,92 @@ static void qcom_cc_gdsc_unregister(void - gdsc_unregister(data); - } - -+/* -+ * Backwards compatibility with old DTs. Register a pass-through factor 1/1 -+ * clock to translate 'path' clk into 'name' clk and regsiter the 'path' -+ * clk as a fixed rate clock if it isn't present. -+ */ -+static int _qcom_cc_register_board_clk(struct device *dev, const char *path, -+ const char *name, unsigned long rate, -+ bool add_factor) -+{ -+ struct device_node *node = NULL; -+ struct device_node *clocks_node; -+ struct clk_fixed_factor *factor; -+ struct clk_fixed_rate *fixed; -+ struct clk *clk; -+ struct clk_init_data init_data = { }; -+ -+ clocks_node = of_find_node_by_path("/clocks"); -+ if (clocks_node) -+ node = of_find_node_by_name(clocks_node, path); -+ of_node_put(clocks_node); -+ -+ if (!node) { -+ fixed = devm_kzalloc(dev, sizeof(*fixed), GFP_KERNEL); -+ if (!fixed) -+ return -EINVAL; -+ -+ fixed->fixed_rate = rate; -+ fixed->hw.init = &init_data; -+ -+ init_data.name = path; -+ init_data.flags = CLK_IS_ROOT; -+ init_data.ops = &clk_fixed_rate_ops; -+ -+ clk = devm_clk_register(dev, &fixed->hw); -+ if (IS_ERR(clk)) -+ return PTR_ERR(clk); -+ } -+ of_node_put(node); -+ -+ if (add_factor) { -+ factor = devm_kzalloc(dev, sizeof(*factor), GFP_KERNEL); -+ if (!factor) -+ return -EINVAL; -+ -+ factor->mult = factor->div = 1; -+ factor->hw.init = &init_data; -+ -+ init_data.name = name; -+ init_data.parent_names = &path; -+ init_data.num_parents = 1; -+ init_data.flags = 0; -+ init_data.ops = &clk_fixed_factor_ops; -+ -+ clk = devm_clk_register(dev, &factor->hw); -+ if (IS_ERR(clk)) -+ return PTR_ERR(clk); -+ } -+ -+ return 0; -+} -+ -+int qcom_cc_register_board_clk(struct device *dev, const char *path, -+ const char *name, unsigned long rate) -+{ -+ bool add_factor = true; -+ struct device_node *node; -+ -+ /* The RPM clock driver will add the factor clock if present */ -+ if (IS_ENABLED(CONFIG_QCOM_RPMCC)) { -+ node = of_find_compatible_node(NULL, NULL, "qcom,rpmcc"); -+ if (of_device_is_available(node)) -+ add_factor = false; -+ of_node_put(node); -+ } -+ -+ return _qcom_cc_register_board_clk(dev, path, name, rate, add_factor); -+} -+EXPORT_SYMBOL_GPL(qcom_cc_register_board_clk); -+ -+int qcom_cc_register_sleep_clk(struct device *dev) -+{ -+ return _qcom_cc_register_board_clk(dev, "sleep_clk", "sleep_clk_src", -+ 32768, true); -+} -+EXPORT_SYMBOL_GPL(qcom_cc_register_sleep_clk); -+ - int qcom_cc_really_probe(struct platform_device *pdev, - const struct qcom_cc_desc *desc, struct regmap *regmap) - { ---- a/drivers/clk/qcom/common.h -+++ b/drivers/clk/qcom/common.h -@@ -37,6 +37,10 @@ extern const struct freq_tbl *qcom_find_ - extern int qcom_find_src_index(struct clk_hw *hw, const struct parent_map *map, - u8 src); - -+extern int qcom_cc_register_board_clk(struct device *dev, const char *path, -+ const char *name, unsigned long rate); -+extern int qcom_cc_register_sleep_clk(struct device *dev); -+ - extern struct regmap *qcom_cc_map(struct platform_device *pdev, - const struct qcom_cc_desc *desc); - extern int qcom_cc_really_probe(struct platform_device *pdev, |