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path: root/drivers/clk/at91/pmc.c
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Diffstat (limited to 'drivers/clk/at91/pmc.c')
-rw-r--r--drivers/clk/at91/pmc.c155
1 files changed, 12 insertions, 143 deletions
diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c
index 481146029b2e..295b17b9c689 100644
--- a/drivers/clk/at91/pmc.c
+++ b/drivers/clk/at91/pmc.c
@@ -20,6 +20,7 @@
#include <linux/irqdomain.h>
#include <linux/of_irq.h>
#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
#include <asm/proc-fns.h>
@@ -70,14 +71,14 @@ static void pmc_irq_mask(struct irq_data *d)
{
struct at91_pmc *pmc = irq_data_get_irq_chip_data(d);
- pmc_write(pmc, AT91_PMC_IDR, 1 << d->hwirq);
+ regmap_write(pmc->regmap, AT91_PMC_IDR, 1 << d->hwirq);
}
static void pmc_irq_unmask(struct irq_data *d)
{
struct at91_pmc *pmc = irq_data_get_irq_chip_data(d);
- pmc_write(pmc, AT91_PMC_IER, 1 << d->hwirq);
+ regmap_write(pmc->regmap, AT91_PMC_IER, 1 << d->hwirq);
}
static int pmc_irq_set_type(struct irq_data *d, unsigned type)
@@ -94,15 +95,15 @@ static void pmc_irq_suspend(struct irq_data *d)
{
struct at91_pmc *pmc = irq_data_get_irq_chip_data(d);
- pmc->imr = pmc_read(pmc, AT91_PMC_IMR);
- pmc_write(pmc, AT91_PMC_IDR, pmc->imr);
+ regmap_read(pmc->regmap, AT91_PMC_IMR, &pmc->imr);
+ regmap_write(pmc->regmap, AT91_PMC_IDR, pmc->imr);
}
static void pmc_irq_resume(struct irq_data *d)
{
struct at91_pmc *pmc = irq_data_get_irq_chip_data(d);
- pmc_write(pmc, AT91_PMC_IER, pmc->imr);
+ regmap_write(pmc->regmap, AT91_PMC_IER, pmc->imr);
}
static struct irq_chip pmc_irq = {
@@ -161,10 +162,14 @@ static const struct irq_domain_ops pmc_irq_ops = {
static irqreturn_t pmc_irq_handler(int irq, void *data)
{
struct at91_pmc *pmc = (struct at91_pmc *)data;
+ unsigned int tmpsr, imr;
unsigned long sr;
int n;
- sr = pmc_read(pmc, AT91_PMC_SR) & pmc_read(pmc, AT91_PMC_IMR);
+ regmap_read(pmc->regmap, AT91_PMC_SR, &tmpsr);
+ regmap_read(pmc->regmap, AT91_PMC_IMR, &imr);
+
+ sr = tmpsr & imr;
if (!sr)
return IRQ_NONE;
@@ -239,17 +244,15 @@ static struct at91_pmc *__init at91_pmc_init(struct device_node *np,
if (!pmc)
return NULL;
- spin_lock_init(&pmc->lock);
pmc->regmap = regmap;
pmc->virq = virq;
pmc->caps = caps;
pmc->irqdomain = irq_domain_add_linear(np, 32, &pmc_irq_ops, pmc);
-
if (!pmc->irqdomain)
goto out_free_pmc;
- pmc_write(pmc, AT91_PMC_IDR, 0xffffffff);
+ regmap_write(pmc->regmap, AT91_PMC_IDR, 0xffffffff);
if (request_irq(pmc->virq, pmc_irq_handler,
IRQF_SHARED | IRQF_COND_SUSPEND, "pmc", pmc))
goto out_remove_irqdomain;
@@ -264,137 +267,10 @@ out_free_pmc:
return NULL;
}
-static const struct of_device_id pmc_clk_ids[] __initconst = {
- /* Slow oscillator */
- {
- .compatible = "atmel,at91sam9260-clk-slow",
- .data = of_at91sam9260_clk_slow_setup,
- },
- /* Main clock */
- {
- .compatible = "atmel,at91rm9200-clk-main-osc",
- .data = of_at91rm9200_clk_main_osc_setup,
- },
- {
- .compatible = "atmel,at91sam9x5-clk-main-rc-osc",
- .data = of_at91sam9x5_clk_main_rc_osc_setup,
- },
- {
- .compatible = "atmel,at91rm9200-clk-main",
- .data = of_at91rm9200_clk_main_setup,
- },
- {
- .compatible = "atmel,at91sam9x5-clk-main",
- .data = of_at91sam9x5_clk_main_setup,
- },
- /* PLL clocks */
- {
- .compatible = "atmel,at91rm9200-clk-pll",
- .data = of_at91rm9200_clk_pll_setup,
- },
- {
- .compatible = "atmel,at91sam9g45-clk-pll",
- .data = of_at91sam9g45_clk_pll_setup,
- },
- {
- .compatible = "atmel,at91sam9g20-clk-pllb",
- .data = of_at91sam9g20_clk_pllb_setup,
- },
- {
- .compatible = "atmel,sama5d3-clk-pll",
- .data = of_sama5d3_clk_pll_setup,
- },
- {
- .compatible = "atmel,at91sam9x5-clk-plldiv",
- .data = of_at91sam9x5_clk_plldiv_setup,
- },
- /* Master clock */
- {
- .compatible = "atmel,at91rm9200-clk-master",
- .data = of_at91rm9200_clk_master_setup,
- },
- {
- .compatible = "atmel,at91sam9x5-clk-master",
- .data = of_at91sam9x5_clk_master_setup,
- },
- /* System clocks */
- {
- .compatible = "atmel,at91rm9200-clk-system",
- .data = of_at91rm9200_clk_sys_setup,
- },
- /* Peripheral clocks */
- {
- .compatible = "atmel,at91rm9200-clk-peripheral",
- .data = of_at91rm9200_clk_periph_setup,
- },
- {
- .compatible = "atmel,at91sam9x5-clk-peripheral",
- .data = of_at91sam9x5_clk_periph_setup,
- },
- /* Programmable clocks */
- {
- .compatible = "atmel,at91rm9200-clk-programmable",
- .data = of_at91rm9200_clk_prog_setup,
- },
- {
- .compatible = "atmel,at91sam9g45-clk-programmable",
- .data = of_at91sam9g45_clk_prog_setup,
- },
- {
- .compatible = "atmel,at91sam9x5-clk-programmable",
- .data = of_at91sam9x5_clk_prog_setup,
- },
- /* UTMI clock */
-#if defined(CONFIG_HAVE_AT91_UTMI)
- {
- .compatible = "atmel,at91sam9x5-clk-utmi",
- .data = of_at91sam9x5_clk_utmi_setup,
- },
-#endif
- /* USB clock */
-#if defined(CONFIG_HAVE_AT91_USB_CLK)
- {
- .compatible = "atmel,at91rm9200-clk-usb",
- .data = of_at91rm9200_clk_usb_setup,
- },
- {
- .compatible = "atmel,at91sam9x5-clk-usb",
- .data = of_at91sam9x5_clk_usb_setup,
- },
- {
- .compatible = "atmel,at91sam9n12-clk-usb",
- .data = of_at91sam9n12_clk_usb_setup,
- },
-#endif
- /* SMD clock */
-#if defined(CONFIG_HAVE_AT91_SMD)
- {
- .compatible = "atmel,at91sam9x5-clk-smd",
- .data = of_at91sam9x5_clk_smd_setup,
- },
-#endif
-#if defined(CONFIG_HAVE_AT91_H32MX)
- {
- .compatible = "atmel,sama5d4-clk-h32mx",
- .data = of_sama5d4_clk_h32mx_setup,
- },
-#endif
-#if defined(CONFIG_HAVE_AT91_GENERATED_CLK)
- {
- .compatible = "atmel,sama5d2-clk-generated",
- .data = of_sama5d2_clk_generated_setup,
- },
-#endif
- { /*sentinel*/ }
-};
-
static void __init of_at91_pmc_setup(struct device_node *np,
const struct at91_pmc_caps *caps)
{
struct at91_pmc *pmc;
- struct device_node *childnp;
- void (*clk_setup)(struct device_node *, struct at91_pmc *);
- const struct of_device_id *clk_id;
void __iomem *regbase = of_iomap(np, 0);
struct regmap *regmap;
int virq;
@@ -410,13 +286,6 @@ static void __init of_at91_pmc_setup(struct device_node *np,
pmc = at91_pmc_init(np, regmap, regbase, virq, caps);
if (!pmc)
return;
- for_each_child_of_node(np, childnp) {
- clk_id = of_match_node(pmc_clk_ids, childnp);
- if (!clk_id)
- continue;
- clk_setup = clk_id->data;
- clk_setup(childnp, pmc);
- }
}
static void __init of_at91rm9200_pmc_setup(struct device_node *np)
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-26 18:37:44 +0000