diff options
author | Linaro CI <ci_notify@linaro.org> | 2019-11-18 19:52:15 +0000 |
---|---|---|
committer | Linaro CI <ci_notify@linaro.org> | 2019-11-18 19:52:15 +0000 |
commit | bdf5dd503c12c9c78017f600bbddbc00dea0d5eb (patch) | |
tree | 059643034e858ac3f7500b10e9201991aa262352 | |
parent | 1054584d72db23be1d600045b399b1eb3ce19df7 (diff) | |
parent | 4f6bfc61634e380749e3db0dd10e0bd68bc692d2 (diff) |
Merge remote-tracking branch 'qcs404-cpufreq/tracking-qcomlt-qcs404-cpufreq' into integration-linux-qcomlt
-rw-r--r-- | Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.txt | 7 | ||||
-rw-r--r-- | drivers/clk/qcom/apcs-msm8916.c | 23 | ||||
-rw-r--r-- | drivers/clk/qcom/clk-alpha-pll.c | 8 | ||||
-rw-r--r-- | drivers/clk/qcom/clk-alpha-pll.h | 1 | ||||
-rw-r--r-- | drivers/clk/qcom/gcc-qcs404.c | 2 | ||||
-rw-r--r-- | drivers/clk/qcom/hfpll.c | 25 |
6 files changed, 58 insertions, 8 deletions
diff --git a/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.txt b/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.txt index d59dbd7a37f0..26143d13a1a4 100644 --- a/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.txt +++ b/Documentation/devicetree/bindings/mailbox/qcom,apcs-kpss-global.txt @@ -21,10 +21,11 @@ platforms. Usage: required Value type: <prop-encoded-array> Definition: must specify the base address and size of the global block + - clocks: - Usage: required if #clocks-cells property is present - Value type: <phandle> - Definition: phandle to the input PLL, which feeds the APCS mux/divider + Usage: required if #clock-names property is present + Value type: <phandle array> + Definition: phandles to the two parent clocks of the clock driver. Usage: required if #clock-names property is present Value type: <phandle array> diff --git a/drivers/clk/qcom/apcs-msm8916.c b/drivers/clk/qcom/apcs-msm8916.c index a6c89a310b18..dd82eb1e5202 100644 --- a/drivers/clk/qcom/apcs-msm8916.c +++ b/drivers/clk/qcom/apcs-msm8916.c @@ -19,7 +19,7 @@ static const u32 gpll0_a53cc_map[] = { 4, 5 }; -static const char * const gpll0_a53cc[] = { +static const char *gpll0_a53cc[] = { "gpll0_vote", "a53pll", }; @@ -50,6 +50,8 @@ static int qcom_apcs_msm8916_clk_probe(struct platform_device *pdev) struct regmap *regmap; struct clk_init_data init = { }; int ret = -ENODEV; + const char *parents[2]; + int pll_index = 0; regmap = dev_get_regmap(parent, NULL); if (!regmap) { @@ -61,6 +63,16 @@ static int qcom_apcs_msm8916_clk_probe(struct platform_device *pdev) if (!a53cc) return -ENOMEM; + /* legacy bindings only defined the pll parent clock (index = 0) with no + * name; when both of the parents are specified in the bindings, the + * pll is the second one (index = 1). + */ + if (of_clk_parent_fill(parent->of_node, parents, 2) == 2) { + gpll0_a53cc[0] = parents[0]; + gpll0_a53cc[1] = parents[1]; + pll_index = 1; + } + init.name = "a53mux"; init.parent_names = gpll0_a53cc; init.num_parents = ARRAY_SIZE(gpll0_a53cc); @@ -76,10 +88,11 @@ static int qcom_apcs_msm8916_clk_probe(struct platform_device *pdev) a53cc->src_shift = 8; a53cc->parent_map = gpll0_a53cc_map; - a53cc->pclk = devm_clk_get(parent, NULL); + a53cc->pclk = of_clk_get(parent->of_node, pll_index); if (IS_ERR(a53cc->pclk)) { ret = PTR_ERR(a53cc->pclk); - dev_err(dev, "failed to get clk: %d\n", ret); + if (ret != -EPROBE_DEFER) + dev_err(dev, "failed to get clk: %d\n", ret); return ret; } @@ -87,6 +100,7 @@ static int qcom_apcs_msm8916_clk_probe(struct platform_device *pdev) ret = clk_notifier_register(a53cc->pclk, &a53cc->clk_nb); if (ret) { dev_err(dev, "failed to register clock notifier: %d\n", ret); + clk_put(a53cc->pclk); return ret; } @@ -109,6 +123,8 @@ static int qcom_apcs_msm8916_clk_probe(struct platform_device *pdev) err: clk_notifier_unregister(a53cc->pclk, &a53cc->clk_nb); + clk_put(a53cc->pclk); + return ret; } @@ -117,6 +133,7 @@ static int qcom_apcs_msm8916_clk_remove(struct platform_device *pdev) struct clk_regmap_mux_div *a53cc = platform_get_drvdata(pdev); clk_notifier_unregister(a53cc->pclk, &a53cc->clk_nb); + clk_put(a53cc->pclk); return 0; } diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c index 055318f97991..9228b7b1f56e 100644 --- a/drivers/clk/qcom/clk-alpha-pll.c +++ b/drivers/clk/qcom/clk-alpha-pll.c @@ -878,6 +878,14 @@ static long clk_trion_pll_round_rate(struct clk_hw *hw, unsigned long rate, return clamp(rate, min_freq, max_freq); } +const struct clk_ops clk_alpha_pll_fixed_ops = { + .enable = clk_alpha_pll_enable, + .disable = clk_alpha_pll_disable, + .is_enabled = clk_alpha_pll_is_enabled, + .recalc_rate = clk_alpha_pll_recalc_rate, +}; +EXPORT_SYMBOL_GPL(clk_alpha_pll_fixed_ops); + const struct clk_ops clk_alpha_pll_ops = { .enable = clk_alpha_pll_enable, .disable = clk_alpha_pll_disable, diff --git a/drivers/clk/qcom/clk-alpha-pll.h b/drivers/clk/qcom/clk-alpha-pll.h index 15f27f4b06df..c28eb1a08c0c 100644 --- a/drivers/clk/qcom/clk-alpha-pll.h +++ b/drivers/clk/qcom/clk-alpha-pll.h @@ -109,6 +109,7 @@ struct alpha_pll_config { }; extern const struct clk_ops clk_alpha_pll_ops; +extern const struct clk_ops clk_alpha_pll_fixed_ops; extern const struct clk_ops clk_alpha_pll_hwfsm_ops; extern const struct clk_ops clk_alpha_pll_postdiv_ops; extern const struct clk_ops clk_alpha_pll_huayra_ops; diff --git a/drivers/clk/qcom/gcc-qcs404.c b/drivers/clk/qcom/gcc-qcs404.c index bd32212f37e6..d8ab5eb47e87 100644 --- a/drivers/clk/qcom/gcc-qcs404.c +++ b/drivers/clk/qcom/gcc-qcs404.c @@ -330,7 +330,7 @@ static struct clk_alpha_pll gpll0_ao_out_main = { .parent_names = (const char *[]){ "cxo" }, .num_parents = 1, .flags = CLK_IS_CRITICAL, - .ops = &clk_alpha_pll_ops, + .ops = &clk_alpha_pll_fixed_ops, }, }, }; diff --git a/drivers/clk/qcom/hfpll.c b/drivers/clk/qcom/hfpll.c index a6de7101430c..d5fd27938e7b 100644 --- a/drivers/clk/qcom/hfpll.c +++ b/drivers/clk/qcom/hfpll.c @@ -52,10 +52,19 @@ static int qcom_hfpll_probe(struct platform_device *pdev) void __iomem *base; struct regmap *regmap; struct clk_hfpll *h; + struct clk *pclk; + int ret; struct clk_init_data init = { .parent_names = (const char *[]){ "xo" }, .num_parents = 1, .ops = &clk_ops_hfpll, + /* + * rather than marking the clock critical and forcing the clock + * to be always enabled, we make sure that the clock is not + * disabled: the firmware remains responsible of enabling this + * clock (for more info check the commit log) + */ + .flags = CLK_IGNORE_UNUSED, }; h = devm_kzalloc(dev, sizeof(*h), GFP_KERNEL); @@ -75,11 +84,25 @@ static int qcom_hfpll_probe(struct platform_device *pdev) 0, &init.name)) return -ENODEV; + /* get parent clock from device tree (optional) */ + pclk = devm_clk_get(dev, "xo"); + if (!IS_ERR(pclk)) + init.parent_names = (const char *[]){ __clk_get_name(pclk) }; + else if (PTR_ERR(pclk) == -EPROBE_DEFER) + return -EPROBE_DEFER; + h->d = &hdata; h->clkr.hw.init = &init; spin_lock_init(&h->lock); - return devm_clk_register_regmap(&pdev->dev, &h->clkr); + ret = devm_clk_register_regmap(dev, &h->clkr); + if (ret) { + dev_err(dev, "failed to register regmap clock: %d\n", ret); + return ret; + } + + return devm_of_clk_add_hw_provider(dev, of_clk_hw_simple_get, + &h->clkr.hw); } static struct platform_driver qcom_hfpll_driver = { |