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[217.229.16.64]) by smtp.gmail.com with ESMTPSA id w18sm103621359wru.54.2019.01.25.02.23.00 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Fri, 25 Jan 2019 02:23:00 -0800 (PST) From: Thierry Reding To: Thierry Reding Subject: [PATCH 4/7] soc/tegra: pmc: Pass struct tegra_pmc * where possible Date: Fri, 25 Jan 2019 11:22:52 +0100 Message-Id: <20190125102255.6862-4-thierry.reding@gmail.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190125102255.6862-1-thierry.reding@gmail.com> References: <20190125102255.6862-1-thierry.reding@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190125_022304_512584_31208C8C X-CRM114-Status: GOOD ( 18.26 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-tegra@vger.kernel.org, Joseph Lo , Stephen Warren , linux-arm-kernel@lists.infradead.org, Jon Hunter Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Thierry Reding Instead of using the global pmc variable, pass around a pointer where possible. Also, replace most occurrences of pr_*() functions by their equivalent dev_*() functions, reusing the pmc->dev pointer. It's not possible to get completely rid of the global variable because some of the public API that this driver exposes still relies on it. Signed-off-by: Thierry Reding Acked-by: Jon Hunter --- drivers/soc/tegra/pmc.c | 267 +++++++++++++++++++++++----------------- 1 file changed, 152 insertions(+), 115 deletions(-) diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c index fa0e1ac6d501..32dd619c098e 100644 --- a/drivers/soc/tegra/pmc.c +++ b/drivers/soc/tegra/pmc.c @@ -344,30 +344,36 @@ to_powergate(struct generic_pm_domain *domain) return container_of(domain, struct tegra_powergate, genpd); } -static u32 tegra_pmc_readl(unsigned long offset) +static u32 tegra_pmc_readl(struct tegra_pmc *pmc, unsigned long offset) { return readl(pmc->base + offset); } -static void tegra_pmc_writel(u32 value, unsigned long offset) +static void tegra_pmc_writel(struct tegra_pmc *pmc, u32 value, + unsigned long offset) { writel(value, pmc->base + offset); } +/* + * TODO Figure out a way to call this with the struct tegra_pmc * passed in. + * This currently doesn't work because readx_poll_timeout() can only operate + * on functions that take a single argument. + */ static inline bool tegra_powergate_state(int id) { if (id == TEGRA_POWERGATE_3D && pmc->soc->has_gpu_clamps) - return (tegra_pmc_readl(GPU_RG_CNTRL) & 0x1) == 0; + return (tegra_pmc_readl(pmc, GPU_RG_CNTRL) & 0x1) == 0; else - return (tegra_pmc_readl(PWRGATE_STATUS) & BIT(id)) != 0; + return (tegra_pmc_readl(pmc, PWRGATE_STATUS) & BIT(id)) != 0; } -static inline bool tegra_powergate_is_valid(int id) +static inline bool tegra_powergate_is_valid(struct tegra_pmc *pmc, int id) { return (pmc->soc && pmc->soc->powergates[id]); } -static inline bool tegra_powergate_is_available(int id) +static inline bool tegra_powergate_is_available(struct tegra_pmc *pmc, int id) { return test_bit(id, pmc->powergates_available); } @@ -380,7 +386,7 @@ static int tegra_powergate_lookup(struct tegra_pmc *pmc, const char *name) return -EINVAL; for (i = 0; i < pmc->soc->num_powergates; i++) { - if (!tegra_powergate_is_valid(i)) + if (!tegra_powergate_is_valid(pmc, i)) continue; if (!strcmp(name, pmc->soc->powergates[i])) @@ -392,10 +398,12 @@ static int tegra_powergate_lookup(struct tegra_pmc *pmc, const char *name) /** * tegra_powergate_set() - set the state of a partition + * @pmc: power management controller * @id: partition ID * @new_state: new state of the partition */ -static int tegra_powergate_set(unsigned int id, bool new_state) +static int tegra_powergate_set(struct tegra_pmc *pmc, unsigned int id, + bool new_state) { bool status; int err; @@ -410,7 +418,7 @@ static int tegra_powergate_set(unsigned int id, bool new_state) return 0; } - tegra_pmc_writel(PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE); + tegra_pmc_writel(pmc, PWRGATE_TOGGLE_START | id, PWRGATE_TOGGLE); err = readx_poll_timeout(tegra_powergate_state, id, status, status == new_state, 10, 100000); @@ -420,7 +428,8 @@ static int tegra_powergate_set(unsigned int id, bool new_state) return err; } -static int __tegra_powergate_remove_clamping(unsigned int id) +static int __tegra_powergate_remove_clamping(struct tegra_pmc *pmc, + unsigned int id) { u32 mask; @@ -432,7 +441,7 @@ static int __tegra_powergate_remove_clamping(unsigned int id) */ if (id == TEGRA_POWERGATE_3D) { if (pmc->soc->has_gpu_clamps) { - tegra_pmc_writel(0, GPU_RG_CNTRL); + tegra_pmc_writel(pmc, 0, GPU_RG_CNTRL); goto out; } } @@ -448,7 +457,7 @@ static int __tegra_powergate_remove_clamping(unsigned int id) else mask = (1 << id); - tegra_pmc_writel(mask, REMOVE_CLAMPING); + tegra_pmc_writel(pmc, mask, REMOVE_CLAMPING); out: mutex_unlock(&pmc->powergates_lock); @@ -500,7 +509,7 @@ static int tegra_powergate_power_up(struct tegra_powergate *pg, usleep_range(10, 20); - err = tegra_powergate_set(pg->id, true); + err = tegra_powergate_set(pg->pmc, pg->id, true); if (err < 0) return err; @@ -512,7 +521,7 @@ static int tegra_powergate_power_up(struct tegra_powergate *pg, usleep_range(10, 20); - err = __tegra_powergate_remove_clamping(pg->id); + err = __tegra_powergate_remove_clamping(pg->pmc, pg->id); if (err) goto disable_clks; @@ -539,7 +548,7 @@ static int tegra_powergate_power_up(struct tegra_powergate *pg, usleep_range(10, 20); powergate_off: - tegra_powergate_set(pg->id, false); + tegra_powergate_set(pg->pmc, pg->id, false); return err; } @@ -564,7 +573,7 @@ static int tegra_powergate_power_down(struct tegra_powergate *pg) usleep_range(10, 20); - err = tegra_powergate_set(pg->id, false); + err = tegra_powergate_set(pg->pmc, pg->id, false); if (err) goto assert_resets; @@ -585,12 +594,13 @@ static int tegra_powergate_power_down(struct tegra_powergate *pg) static int tegra_genpd_power_on(struct generic_pm_domain *domain) { struct tegra_powergate *pg = to_powergate(domain); + struct device *dev = pg->pmc->dev; int err; err = tegra_powergate_power_up(pg, true); if (err) - pr_err("failed to turn on PM domain %s: %d\n", pg->genpd.name, - err); + dev_err(dev, "failed to turn on PM domain %s: %d\n", + pg->genpd.name, err); return err; } @@ -598,12 +608,13 @@ static int tegra_genpd_power_on(struct generic_pm_domain *domain) static int tegra_genpd_power_off(struct generic_pm_domain *domain) { struct tegra_powergate *pg = to_powergate(domain); + struct device *dev = pg->pmc->dev; int err; err = tegra_powergate_power_down(pg); if (err) - pr_err("failed to turn off PM domain %s: %d\n", - pg->genpd.name, err); + dev_err(dev, "failed to turn off PM domain %s: %d\n", + pg->genpd.name, err); return err; } @@ -614,10 +625,10 @@ static int tegra_genpd_power_off(struct generic_pm_domain *domain) */ int tegra_powergate_power_on(unsigned int id) { - if (!tegra_powergate_is_available(id)) + if (!tegra_powergate_is_available(pmc, id)) return -EINVAL; - return tegra_powergate_set(id, true); + return tegra_powergate_set(pmc, id, true); } /** @@ -626,20 +637,21 @@ int tegra_powergate_power_on(unsigned int id) */ int tegra_powergate_power_off(unsigned int id) { - if (!tegra_powergate_is_available(id)) + if (!tegra_powergate_is_available(pmc, id)) return -EINVAL; - return tegra_powergate_set(id, false); + return tegra_powergate_set(pmc, id, false); } EXPORT_SYMBOL(tegra_powergate_power_off); /** * tegra_powergate_is_powered() - check if partition is powered + * @pmc: power management controller * @id: partition ID */ -static int tegra_powergate_is_powered(unsigned int id) +static int tegra_powergate_is_powered(struct tegra_pmc *pmc, unsigned int id) { - if (!tegra_powergate_is_valid(id)) + if (!tegra_powergate_is_valid(pmc, id)) return -EINVAL; return tegra_powergate_state(id); @@ -651,10 +663,10 @@ static int tegra_powergate_is_powered(unsigned int id) */ int tegra_powergate_remove_clamping(unsigned int id) { - if (!tegra_powergate_is_available(id)) + if (!tegra_powergate_is_available(pmc, id)) return -EINVAL; - return __tegra_powergate_remove_clamping(id); + return __tegra_powergate_remove_clamping(pmc, id); } EXPORT_SYMBOL(tegra_powergate_remove_clamping); @@ -672,7 +684,7 @@ int tegra_powergate_sequence_power_up(unsigned int id, struct clk *clk, struct tegra_powergate *pg; int err; - if (!tegra_powergate_is_available(id)) + if (!tegra_powergate_is_available(pmc, id)) return -EINVAL; pg = kzalloc(sizeof(*pg), GFP_KERNEL); @@ -687,7 +699,8 @@ int tegra_powergate_sequence_power_up(unsigned int id, struct clk *clk, err = tegra_powergate_power_up(pg, false); if (err) - pr_err("failed to turn on partition %d: %d\n", id, err); + dev_err(pmc->dev, "failed to turn on partition %d: %d\n", id, + err); kfree(pg); @@ -697,12 +710,14 @@ EXPORT_SYMBOL(tegra_powergate_sequence_power_up); /** * tegra_get_cpu_powergate_id() - convert from CPU ID to partition ID + * @pmc: power management controller * @cpuid: CPU partition ID * * Returns the partition ID corresponding to the CPU partition ID or a * negative error code on failure. */ -static int tegra_get_cpu_powergate_id(unsigned int cpuid) +static int tegra_get_cpu_powergate_id(struct tegra_pmc *pmc, + unsigned int cpuid) { if (pmc->soc && cpuid < pmc->soc->num_cpu_powergates) return pmc->soc->cpu_powergates[cpuid]; @@ -718,11 +733,11 @@ bool tegra_pmc_cpu_is_powered(unsigned int cpuid) { int id; - id = tegra_get_cpu_powergate_id(cpuid); + id = tegra_get_cpu_powergate_id(pmc, cpuid); if (id < 0) return false; - return tegra_powergate_is_powered(id); + return tegra_powergate_is_powered(pmc, id); } /** @@ -733,11 +748,11 @@ int tegra_pmc_cpu_power_on(unsigned int cpuid) { int id; - id = tegra_get_cpu_powergate_id(cpuid); + id = tegra_get_cpu_powergate_id(pmc, cpuid); if (id < 0) return id; - return tegra_powergate_set(id, true); + return tegra_powergate_set(pmc, id, true); } /** @@ -748,7 +763,7 @@ int tegra_pmc_cpu_remove_clamping(unsigned int cpuid) { int id; - id = tegra_get_cpu_powergate_id(cpuid); + id = tegra_get_cpu_powergate_id(pmc, cpuid); if (id < 0) return id; @@ -778,9 +793,9 @@ static int tegra_pmc_restart_notify(struct notifier_block *this, writel(value, pmc->scratch + pmc->soc->regs->scratch0); /* reset everything but PMC_SCRATCH0 and PMC_RST_STATUS */ - value = tegra_pmc_readl(PMC_CNTRL); + value = tegra_pmc_readl(pmc, PMC_CNTRL); value |= PMC_CNTRL_MAIN_RST; - tegra_pmc_writel(value, PMC_CNTRL); + tegra_pmc_writel(pmc, value, PMC_CNTRL); return NOTIFY_DONE; } @@ -799,7 +814,7 @@ static int powergate_show(struct seq_file *s, void *data) seq_printf(s, "------------------\n"); for (i = 0; i < pmc->soc->num_powergates; i++) { - status = tegra_powergate_is_powered(i); + status = tegra_powergate_is_powered(pmc, i); if (status < 0) continue; @@ -861,12 +876,13 @@ static int tegra_powergate_of_get_clks(struct tegra_powergate *pg, static int tegra_powergate_of_get_resets(struct tegra_powergate *pg, struct device_node *np, bool off) { + struct device *dev = pg->pmc->dev; int err; pg->reset = of_reset_control_array_get_exclusive(np); if (IS_ERR(pg->reset)) { err = PTR_ERR(pg->reset); - pr_err("failed to get device resets: %d\n", err); + dev_err(dev, "failed to get device resets: %d\n", err); return err; } @@ -883,6 +899,7 @@ static int tegra_powergate_of_get_resets(struct tegra_powergate *pg, static void tegra_powergate_add(struct tegra_pmc *pmc, struct device_node *np) { + struct device *dev = pmc->dev; struct tegra_powergate *pg; int id, err; bool off; @@ -893,7 +910,7 @@ static void tegra_powergate_add(struct tegra_pmc *pmc, struct device_node *np) id = tegra_powergate_lookup(pmc, np->name); if (id < 0) { - pr_err("powergate lookup failed for %pOFn: %d\n", np, id); + dev_err(dev, "powergate lookup failed for %pOFn: %d\n", np, id); goto free_mem; } @@ -909,17 +926,17 @@ static void tegra_powergate_add(struct tegra_pmc *pmc, struct device_node *np) pg->genpd.power_on = tegra_genpd_power_on; pg->pmc = pmc; - off = !tegra_powergate_is_powered(pg->id); + off = !tegra_powergate_is_powered(pmc, pg->id); err = tegra_powergate_of_get_clks(pg, np); if (err < 0) { - pr_err("failed to get clocks for %pOFn: %d\n", np, err); + dev_err(dev, "failed to get clocks for %pOFn: %d\n", np, err); goto set_available; } err = tegra_powergate_of_get_resets(pg, np, off); if (err < 0) { - pr_err("failed to get resets for %pOFn: %d\n", np, err); + dev_err(dev, "failed to get resets for %pOFn: %d\n", np, err); goto remove_clks; } @@ -932,19 +949,19 @@ static void tegra_powergate_add(struct tegra_pmc *pmc, struct device_node *np) err = pm_genpd_init(&pg->genpd, NULL, off); if (err < 0) { - pr_err("failed to initialise PM domain %pOFn: %d\n", np, + dev_err(dev, "failed to initialise PM domain %pOFn: %d\n", np, err); goto remove_resets; } err = of_genpd_add_provider_simple(np, &pg->genpd); if (err < 0) { - pr_err("failed to add PM domain provider for %pOFn: %d\n", - np, err); + dev_err(dev, "failed to add PM domain provider for %pOFn: %d\n", + np, err); goto remove_genpd; } - pr_debug("added PM domain %s\n", pg->genpd.name); + dev_dbg(dev, "added PM domain %s\n", pg->genpd.name); return; @@ -1000,7 +1017,8 @@ tegra_io_pad_find(struct tegra_pmc *pmc, enum tegra_io_pad id) return NULL; } -static int tegra_io_pad_get_dpd_register_bit(enum tegra_io_pad id, +static int tegra_io_pad_get_dpd_register_bit(struct tegra_pmc *pmc, + enum tegra_io_pad id, unsigned long *request, unsigned long *status, u32 *mask) @@ -1009,7 +1027,7 @@ static int tegra_io_pad_get_dpd_register_bit(enum tegra_io_pad id, pad = tegra_io_pad_find(pmc, id); if (!pad) { - pr_err("invalid I/O pad ID %u\n", id); + dev_err(pmc->dev, "invalid I/O pad ID %u\n", id); return -ENOENT; } @@ -1029,43 +1047,44 @@ static int tegra_io_pad_get_dpd_register_bit(enum tegra_io_pad id, return 0; } -static int tegra_io_pad_prepare(enum tegra_io_pad id, unsigned long *request, - unsigned long *status, u32 *mask) +static int tegra_io_pad_prepare(struct tegra_pmc *pmc, enum tegra_io_pad id, + unsigned long *request, unsigned long *status, + u32 *mask) { unsigned long rate, value; int err; - err = tegra_io_pad_get_dpd_register_bit(id, request, status, mask); + err = tegra_io_pad_get_dpd_register_bit(pmc, id, request, status, mask); if (err) return err; if (pmc->clk) { rate = clk_get_rate(pmc->clk); if (!rate) { - pr_err("failed to get clock rate\n"); + dev_err(pmc->dev, "failed to get clock rate\n"); return -ENODEV; } - tegra_pmc_writel(DPD_SAMPLE_ENABLE, DPD_SAMPLE); + tegra_pmc_writel(pmc, DPD_SAMPLE_ENABLE, DPD_SAMPLE); /* must be at least 200 ns, in APB (PCLK) clock cycles */ value = DIV_ROUND_UP(1000000000, rate); value = DIV_ROUND_UP(200, value); - tegra_pmc_writel(value, SEL_DPD_TIM); + tegra_pmc_writel(pmc, value, SEL_DPD_TIM); } return 0; } -static int tegra_io_pad_poll(unsigned long offset, u32 mask, - u32 val, unsigned long timeout) +static int tegra_io_pad_poll(struct tegra_pmc *pmc, unsigned long offset, + u32 mask, u32 val, unsigned long timeout) { u32 value; timeout = jiffies + msecs_to_jiffies(timeout); while (time_after(timeout, jiffies)) { - value = tegra_pmc_readl(offset); + value = tegra_pmc_readl(pmc, offset); if ((value & mask) == val) return 0; @@ -1075,10 +1094,10 @@ static int tegra_io_pad_poll(unsigned long offset, u32 mask, return -ETIMEDOUT; } -static void tegra_io_pad_unprepare(void) +static void tegra_io_pad_unprepare(struct tegra_pmc *pmc) { if (pmc->clk) - tegra_pmc_writel(DPD_SAMPLE_DISABLE, DPD_SAMPLE); + tegra_pmc_writel(pmc, DPD_SAMPLE_DISABLE, DPD_SAMPLE); } /** @@ -1095,21 +1114,21 @@ int tegra_io_pad_power_enable(enum tegra_io_pad id) mutex_lock(&pmc->powergates_lock); - err = tegra_io_pad_prepare(id, &request, &status, &mask); + err = tegra_io_pad_prepare(pmc, id, &request, &status, &mask); if (err < 0) { - pr_err("failed to prepare I/O pad: %d\n", err); + dev_err(pmc->dev, "failed to prepare I/O pad: %d\n", err); goto unlock; } - tegra_pmc_writel(IO_DPD_REQ_CODE_OFF | mask, request); + tegra_pmc_writel(pmc, IO_DPD_REQ_CODE_OFF | mask, request); - err = tegra_io_pad_poll(status, mask, 0, 250); + err = tegra_io_pad_poll(pmc, status, mask, 0, 250); if (err < 0) { - pr_err("failed to enable I/O pad: %d\n", err); + dev_err(pmc->dev, "failed to enable I/O pad: %d\n", err); goto unlock; } - tegra_io_pad_unprepare(); + tegra_io_pad_unprepare(pmc); unlock: mutex_unlock(&pmc->powergates_lock); @@ -1131,21 +1150,21 @@ int tegra_io_pad_power_disable(enum tegra_io_pad id) mutex_lock(&pmc->powergates_lock); - err = tegra_io_pad_prepare(id, &request, &status, &mask); + err = tegra_io_pad_prepare(pmc, id, &request, &status, &mask); if (err < 0) { - pr_err("failed to prepare I/O pad: %d\n", err); + dev_err(pmc->dev, "failed to prepare I/O pad: %d\n", err); goto unlock; } - tegra_pmc_writel(IO_DPD_REQ_CODE_ON | mask, request); + tegra_pmc_writel(pmc, IO_DPD_REQ_CODE_ON | mask, request); - err = tegra_io_pad_poll(status, mask, mask, 250); + err = tegra_io_pad_poll(pmc, status, mask, mask, 250); if (err < 0) { - pr_err("failed to disable I/O pad: %d\n", err); + dev_err(pmc->dev, "failed to disable I/O pad: %d\n", err); goto unlock; } - tegra_io_pad_unprepare(); + tegra_io_pad_unprepare(pmc); unlock: mutex_unlock(&pmc->powergates_lock); @@ -1153,22 +1172,24 @@ int tegra_io_pad_power_disable(enum tegra_io_pad id) } EXPORT_SYMBOL(tegra_io_pad_power_disable); -static int tegra_io_pad_is_powered(enum tegra_io_pad id) +static int tegra_io_pad_is_powered(struct tegra_pmc *pmc, enum tegra_io_pad id) { unsigned long request, status; u32 mask, value; int err; - err = tegra_io_pad_get_dpd_register_bit(id, &request, &status, &mask); + err = tegra_io_pad_get_dpd_register_bit(pmc, id, &request, &status, + &mask); if (err) return err; - value = tegra_pmc_readl(status); + value = tegra_pmc_readl(pmc, status); return !(value & mask); } -static int tegra_io_pad_set_voltage(enum tegra_io_pad id, int voltage) +static int tegra_io_pad_set_voltage(struct tegra_pmc *pmc, enum tegra_io_pad id, + int voltage) { const struct tegra_io_pad_soc *pad; u32 value; @@ -1183,29 +1204,29 @@ static int tegra_io_pad_set_voltage(enum tegra_io_pad id, int voltage) mutex_lock(&pmc->powergates_lock); if (pmc->soc->has_impl_33v_pwr) { - value = tegra_pmc_readl(PMC_IMPL_E_33V_PWR); + value = tegra_pmc_readl(pmc, PMC_IMPL_E_33V_PWR); if (voltage == TEGRA_IO_PAD_VOLTAGE_1V8) value &= ~BIT(pad->voltage); else value |= BIT(pad->voltage); - tegra_pmc_writel(value, PMC_IMPL_E_33V_PWR); + tegra_pmc_writel(pmc, value, PMC_IMPL_E_33V_PWR); } else { /* write-enable PMC_PWR_DET_VALUE[pad->voltage] */ - value = tegra_pmc_readl(PMC_PWR_DET); + value = tegra_pmc_readl(pmc, PMC_PWR_DET); value |= BIT(pad->voltage); - tegra_pmc_writel(value, PMC_PWR_DET); + tegra_pmc_writel(pmc, value, PMC_PWR_DET); /* update I/O voltage */ - value = tegra_pmc_readl(PMC_PWR_DET_VALUE); + value = tegra_pmc_readl(pmc, PMC_PWR_DET_VALUE); if (voltage == TEGRA_IO_PAD_VOLTAGE_1V8) value &= ~BIT(pad->voltage); else value |= BIT(pad->voltage); - tegra_pmc_writel(value, PMC_PWR_DET_VALUE); + tegra_pmc_writel(pmc, value, PMC_PWR_DET_VALUE); } mutex_unlock(&pmc->powergates_lock); @@ -1215,7 +1236,7 @@ static int tegra_io_pad_set_voltage(enum tegra_io_pad id, int voltage) return 0; } -static int tegra_io_pad_get_voltage(enum tegra_io_pad id) +static int tegra_io_pad_get_voltage(struct tegra_pmc *pmc, enum tegra_io_pad id) { const struct tegra_io_pad_soc *pad; u32 value; @@ -1228,9 +1249,9 @@ static int tegra_io_pad_get_voltage(enum tegra_io_pad id) return -ENOTSUPP; if (pmc->soc->has_impl_33v_pwr) - value = tegra_pmc_readl(PMC_IMPL_E_33V_PWR); + value = tegra_pmc_readl(pmc, PMC_IMPL_E_33V_PWR); else - value = tegra_pmc_readl(PMC_PWR_DET_VALUE); + value = tegra_pmc_readl(pmc, PMC_PWR_DET_VALUE); if ((value & BIT(pad->voltage)) == 0) return TEGRA_IO_PAD_VOLTAGE_1V8; @@ -1302,21 +1323,21 @@ void tegra_pmc_enter_suspend_mode(enum tegra_suspend_mode mode) ticks = pmc->cpu_good_time * rate + USEC_PER_SEC - 1; do_div(ticks, USEC_PER_SEC); - tegra_pmc_writel(ticks, PMC_CPUPWRGOOD_TIMER); + tegra_pmc_writel(pmc, ticks, PMC_CPUPWRGOOD_TIMER); ticks = pmc->cpu_off_time * rate + USEC_PER_SEC - 1; do_div(ticks, USEC_PER_SEC); - tegra_pmc_writel(ticks, PMC_CPUPWROFF_TIMER); + tegra_pmc_writel(pmc, ticks, PMC_CPUPWROFF_TIMER); wmb(); pmc->rate = rate; } - value = tegra_pmc_readl(PMC_CNTRL); + value = tegra_pmc_readl(pmc, PMC_CNTRL); value &= ~PMC_CNTRL_SIDE_EFFECT_LP0; value |= PMC_CNTRL_CPU_PWRREQ_OE; - tegra_pmc_writel(value, PMC_CNTRL); + tegra_pmc_writel(pmc, value, PMC_CNTRL); } #endif @@ -1438,13 +1459,13 @@ static void tegra_pmc_init_tsense_reset(struct tegra_pmc *pmc) if (of_property_read_u32(np, "nvidia,pinmux-id", &pinmux)) pinmux = 0; - value = tegra_pmc_readl(PMC_SENSOR_CTRL); + value = tegra_pmc_readl(pmc, PMC_SENSOR_CTRL); value |= PMC_SENSOR_CTRL_SCRATCH_WRITE; - tegra_pmc_writel(value, PMC_SENSOR_CTRL); + tegra_pmc_writel(pmc, value, PMC_SENSOR_CTRL); value = (reg_data << PMC_SCRATCH54_DATA_SHIFT) | (reg_addr << PMC_SCRATCH54_ADDR_SHIFT); - tegra_pmc_writel(value, PMC_SCRATCH54); + tegra_pmc_writel(pmc, value, PMC_SCRATCH54); value = PMC_SCRATCH55_RESET_TEGRA; value |= ctrl_id << PMC_SCRATCH55_CNTRL_ID_SHIFT; @@ -1462,11 +1483,11 @@ static void tegra_pmc_init_tsense_reset(struct tegra_pmc *pmc) value |= checksum << PMC_SCRATCH55_CHECKSUM_SHIFT; - tegra_pmc_writel(value, PMC_SCRATCH55); + tegra_pmc_writel(pmc, value, PMC_SCRATCH55); - value = tegra_pmc_readl(PMC_SENSOR_CTRL); + value = tegra_pmc_readl(pmc, PMC_SENSOR_CTRL); value |= PMC_SENSOR_CTRL_ENABLE_RST; - tegra_pmc_writel(value, PMC_SENSOR_CTRL); + tegra_pmc_writel(pmc, value, PMC_SENSOR_CTRL); dev_info(pmc->dev, "emergency thermal reset enabled\n"); @@ -1476,12 +1497,16 @@ static void tegra_pmc_init_tsense_reset(struct tegra_pmc *pmc) static int tegra_io_pad_pinctrl_get_groups_count(struct pinctrl_dev *pctl_dev) { + struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev); + return pmc->soc->num_io_pads; } static const char *tegra_io_pad_pinctrl_get_group_name( struct pinctrl_dev *pctl, unsigned int group) { + struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl); + return pmc->soc->io_pads[group].name; } @@ -1490,6 +1515,8 @@ static int tegra_io_pad_pinctrl_get_group_pins(struct pinctrl_dev *pctl_dev, const unsigned int **pins, unsigned int *num_pins) { + struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev); + *pins = &pmc->soc->io_pads[group].id; *num_pins = 1; return 0; @@ -1506,23 +1533,25 @@ static const struct pinctrl_ops tegra_io_pad_pinctrl_ops = { static int tegra_io_pad_pinconf_get(struct pinctrl_dev *pctl_dev, unsigned int pin, unsigned long *config) { - const struct tegra_io_pad_soc *pad = tegra_io_pad_find(pmc, pin); enum pin_config_param param = pinconf_to_config_param(*config); + struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev); + const struct tegra_io_pad_soc *pad; int ret; u32 arg; + pad = tegra_io_pad_find(pmc, pin); if (!pad) return -EINVAL; switch (param) { case PIN_CONFIG_POWER_SOURCE: - ret = tegra_io_pad_get_voltage(pad->id); + ret = tegra_io_pad_get_voltage(pmc, pad->id); if (ret < 0) return ret; arg = ret; break; case PIN_CONFIG_LOW_POWER_MODE: - ret = tegra_io_pad_is_powered(pad->id); + ret = tegra_io_pad_is_powered(pmc, pad->id); if (ret < 0) return ret; arg = !ret; @@ -1540,12 +1569,14 @@ static int tegra_io_pad_pinconf_set(struct pinctrl_dev *pctl_dev, unsigned int pin, unsigned long *configs, unsigned int num_configs) { - const struct tegra_io_pad_soc *pad = tegra_io_pad_find(pmc, pin); + struct tegra_pmc *pmc = pinctrl_dev_get_drvdata(pctl_dev); + const struct tegra_io_pad_soc *pad; enum pin_config_param param; unsigned int i; int err; u32 arg; + pad = tegra_io_pad_find(pmc, pin); if (!pad) return -EINVAL; @@ -1566,7 +1597,7 @@ static int tegra_io_pad_pinconf_set(struct pinctrl_dev *pctl_dev, if (arg != TEGRA_IO_PAD_VOLTAGE_1V8 && arg != TEGRA_IO_PAD_VOLTAGE_3V3) return -EINVAL; - err = tegra_io_pad_set_voltage(pad->id, arg); + err = tegra_io_pad_set_voltage(pmc, pad->id, arg); if (err) return err; break; @@ -1615,7 +1646,7 @@ static ssize_t reset_reason_show(struct device *dev, { u32 value, rst_src; - value = tegra_pmc_readl(pmc->soc->regs->rst_status); + value = tegra_pmc_readl(pmc, pmc->soc->regs->rst_status); rst_src = (value & pmc->soc->regs->rst_source_mask) >> pmc->soc->regs->rst_source_shift; @@ -1629,7 +1660,7 @@ static ssize_t reset_level_show(struct device *dev, { u32 value, rst_lvl; - value = tegra_pmc_readl(pmc->soc->regs->rst_status); + value = tegra_pmc_readl(pmc, pmc->soc->regs->rst_status); rst_lvl = (value & pmc->soc->regs->rst_level_mask) >> pmc->soc->regs->rst_level_shift; @@ -1926,6 +1957,8 @@ static int tegra_pmc_probe(struct platform_device *pdev) pmc->base = base; mutex_unlock(&pmc->powergates_lock); + platform_set_drvdata(pdev, pmc); + return 0; cleanup_restart_handler: @@ -1938,14 +1971,18 @@ static int tegra_pmc_probe(struct platform_device *pdev) #if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM) static int tegra_pmc_suspend(struct device *dev) { - tegra_pmc_writel(virt_to_phys(tegra_resume), PMC_SCRATCH41); + struct tegra_pmc *pmc = dev_get_drvdata(dev); + + tegra_pmc_writel(pmc, virt_to_phys(tegra_resume), PMC_SCRATCH41); return 0; } static int tegra_pmc_resume(struct device *dev) { - tegra_pmc_writel(0x0, PMC_SCRATCH41); + struct tegra_pmc *pmc, dev_get_drvdata(dev); + + tegra_pmc_writel(pmc, 0x0, PMC_SCRATCH41); return 0; } @@ -1982,11 +2019,11 @@ static void tegra20_pmc_init(struct tegra_pmc *pmc) u32 value; /* Always enable CPU power request */ - value = tegra_pmc_readl(PMC_CNTRL); + value = tegra_pmc_readl(pmc, PMC_CNTRL); value |= PMC_CNTRL_CPU_PWRREQ_OE; - tegra_pmc_writel(value, PMC_CNTRL); + tegra_pmc_writel(pmc, value, PMC_CNTRL); - value = tegra_pmc_readl(PMC_CNTRL); + value = tegra_pmc_readl(pmc, PMC_CNTRL); if (pmc->sysclkreq_high) value &= ~PMC_CNTRL_SYSCLK_POLARITY; @@ -1994,12 +2031,12 @@ static void tegra20_pmc_init(struct tegra_pmc *pmc) value |= PMC_CNTRL_SYSCLK_POLARITY; /* configure the output polarity while the request is tristated */ - tegra_pmc_writel(value, PMC_CNTRL); + tegra_pmc_writel(pmc, value, PMC_CNTRL); /* now enable the request */ - value = tegra_pmc_readl(PMC_CNTRL); + value = tegra_pmc_readl(pmc, PMC_CNTRL); value |= PMC_CNTRL_SYSCLK_OE; - tegra_pmc_writel(value, PMC_CNTRL); + tegra_pmc_writel(pmc, value, PMC_CNTRL); } static void tegra20_pmc_setup_irq_polarity(struct tegra_pmc *pmc, @@ -2008,14 +2045,14 @@ static void tegra20_pmc_setup_irq_polarity(struct tegra_pmc *pmc, { u32 value; - value = tegra_pmc_readl(PMC_CNTRL); + value = tegra_pmc_readl(pmc, PMC_CNTRL); if (invert) value |= PMC_CNTRL_INTR_POLARITY; else value &= ~PMC_CNTRL_INTR_POLARITY; - tegra_pmc_writel(value, PMC_CNTRL); + tegra_pmc_writel(pmc, value, PMC_CNTRL); } static const struct tegra_pmc_soc tegra20_pmc_soc = { @@ -2419,7 +2456,7 @@ static void tegra186_pmc_setup_irq_polarity(struct tegra_pmc *pmc, index = of_property_match_string(np, "reg-names", "wake"); if (index < 0) { - pr_err("failed to find PMC wake registers\n"); + dev_err(pmc->dev, "failed to find PMC wake registers\n"); return; } @@ -2427,7 +2464,7 @@ static void tegra186_pmc_setup_irq_polarity(struct tegra_pmc *pmc, wake = ioremap_nocache(regs.start, resource_size(®s)); if (!wake) { - pr_err("failed to map PMC wake registers\n"); + dev_err(pmc->dev, "failed to map PMC wake registers\n"); return; }