From 3a3e1c88362429ca3a6ef84d232e56b197294ce0 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Mon, 23 Feb 2015 15:57:32 +0200 Subject: [PATCH] ARM: OMAP2+: PRCM: add support for static clock memmap indices All clock provider related drivers will now register their iomaps with a static index. This makes it easier to split up the individual drivers to their own files in subsequent patches. Signed-off-by: Tero Kristo --- arch/arm/mach-omap2/prcm-common.h | 8 ++++ arch/arm/mach-omap2/prm_common.c | 79 +++++++++++++++++++------------ include/linux/clk/ti.h | 1 + 3 files changed, 59 insertions(+), 29 deletions(-) diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h index 6163d66102a3..ee38356b3601 100644 --- a/arch/arm/mach-omap2/prcm-common.h +++ b/arch/arm/mach-omap2/prcm-common.h @@ -518,6 +518,14 @@ struct omap_prcm_irq_setup { .priority = _priority \ } +/** + * struct omap_prcm_init_data - PRCM driver init data + * @index: clock memory mapping index to be used + */ +struct omap_prcm_init_data { + int index; +}; + extern void omap_prcm_irq_cleanup(void); extern int omap_prcm_register_chain_handler( struct omap_prcm_irq_setup *irq_setup); diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c index 79cee117f971..8ec52012f85d 100644 --- a/arch/arm/mach-omap2/prm_common.c +++ b/arch/arm/mach-omap2/prm_common.c @@ -633,31 +633,47 @@ int prm_unregister(struct prm_ll_data *pld) return 0; } +static struct omap_prcm_init_data prm_data = { + .index = TI_CLKM_PRM, +}; + +static struct omap_prcm_init_data cm_data = { + .index = TI_CLKM_CM, +}; + +static struct omap_prcm_init_data cm2_data = { + .index = TI_CLKM_CM2, +}; + +static struct omap_prcm_init_data scrm_data = { + .index = TI_CLKM_SCRM, +}; + static const struct of_device_id omap_prcm_dt_match_table[] = { - { .compatible = "ti,am3-prcm" }, - { .compatible = "ti,am3-scrm" }, - { .compatible = "ti,am4-prcm" }, - { .compatible = "ti,am4-scrm" }, - { .compatible = "ti,dm814-prcm" }, - { .compatible = "ti,dm814-scrm" }, - { .compatible = "ti,dm816-prcm" }, - { .compatible = "ti,dm816-scrm" }, - { .compatible = "ti,omap2-prcm" }, - { .compatible = "ti,omap2-scrm" }, - { .compatible = "ti,omap3-prm" }, - { .compatible = "ti,omap3-cm" }, - { .compatible = "ti,omap3-scrm" }, - { .compatible = "ti,omap4-cm1" }, - { .compatible = "ti,omap4-prm" }, - { .compatible = "ti,omap4-cm2" }, - { .compatible = "ti,omap4-scrm" }, - { .compatible = "ti,omap5-prm" }, - { .compatible = "ti,omap5-cm-core-aon" }, - { .compatible = "ti,omap5-scrm" }, - { .compatible = "ti,omap5-cm-core" }, - { .compatible = "ti,dra7-prm" }, - { .compatible = "ti,dra7-cm-core-aon" }, - { .compatible = "ti,dra7-cm-core" }, + { .compatible = "ti,am3-prcm", .data = &prm_data }, + { .compatible = "ti,am3-scrm", .data = &scrm_data }, + { .compatible = "ti,am4-prcm", .data = &prm_data }, + { .compatible = "ti,am4-scrm", .data = &scrm_data }, + { .compatible = "ti,dm814-prcm", .data = &prm_data }, + { .compatible = "ti,dm814-scrm", .data = &scrm_data }, + { .compatible = "ti,dm816-prcm", .data = &prm_data }, + { .compatible = "ti,dm816-scrm", .data = &scrm_data }, + { .compatible = "ti,omap2-prcm", .data = &prm_data }, + { .compatible = "ti,omap2-scrm", .data = &scrm_data }, + { .compatible = "ti,omap3-prm", .data = &prm_data }, + { .compatible = "ti,omap3-cm", .data = &cm_data }, + { .compatible = "ti,omap3-scrm", .data = &scrm_data }, + { .compatible = "ti,omap4-cm1", .data = &cm_data }, + { .compatible = "ti,omap4-prm", .data = &prm_data }, + { .compatible = "ti,omap4-cm2", .data = &cm2_data }, + { .compatible = "ti,omap4-scrm", .data = &scrm_data }, + { .compatible = "ti,omap5-prm", .data = &prm_data }, + { .compatible = "ti,omap5-cm-core-aon", .data = &cm_data }, + { .compatible = "ti,omap5-scrm", .data = &scrm_data }, + { .compatible = "ti,omap5-cm-core", .data = &cm2_data }, + { .compatible = "ti,dra7-prm", .data = &prm_data }, + { .compatible = "ti,dra7-cm-core-aon", .data = &cm_data }, + { .compatible = "ti,dra7-cm-core", .data = &cm2_data }, { } }; @@ -690,15 +706,20 @@ int __init omap_prcm_init(void) { struct device_node *np; void __iomem *mem; - int memmap_index = 0; + const struct of_device_id *match; + const struct omap_prcm_init_data *data; ti_clk_ll_ops = &omap_clk_ll_ops; - for_each_matching_node(np, omap_prcm_dt_match_table) { + for_each_matching_node_and_match(np, omap_prcm_dt_match_table, &match) { + data = match->data; + mem = of_iomap(np, 0); - clk_memmaps[memmap_index] = mem; - ti_dt_clk_init_provider(np, memmap_index); - memmap_index++; + if (!mem) + return -ENOMEM; + + clk_memmaps[data->index] = mem; + ti_dt_clk_init_provider(np, data->index); } return 0; diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h index 67844003493d..19895a3f48b7 100644 --- a/include/linux/clk/ti.h +++ b/include/linux/clk/ti.h @@ -221,6 +221,7 @@ struct ti_dt_clk { /* Static memmap indices */ enum { TI_CLKM_CM = 0, + TI_CLKM_CM2, TI_CLKM_PRM, TI_CLKM_SCRM, }; -- 2.20.1