From 53cf0cf7ba2ef785b339826a0765bb6b1756adeb Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 13 Mar 2014 15:29:30 +0100 Subject: [PATCH] ARM: shmobile: koelsch-reference: Work around core clock issues Due to issues with runtime PM clock management, clocks not explicitly managed by their drivers may not be enabled at all, or be inadvertently disabled by the clk_disable_unused() late initcall. Until this is fixed, add a temporary workaround, calling shmobile_clk_workaround() with enable == true. For now this enables the clocks for: ether, i2c2, msiof0, qspi_mod, and thermal. More clocks can be added if needed. Signed-off-by: Geert Uytterhoeven Signed-off-by: Simon Horman --- arch/arm/mach-shmobile/board-koelsch-reference.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm/mach-shmobile/board-koelsch-reference.c b/arch/arm/mach-shmobile/board-koelsch-reference.c index 1e6a4361c0eb..a39114a1fe1b 100644 --- a/arch/arm/mach-shmobile/board-koelsch-reference.c +++ b/arch/arm/mach-shmobile/board-koelsch-reference.c @@ -107,9 +107,21 @@ static const struct clk_name clk_names[] __initconst = { { "lvds0", "lvds.0", "rcar-du-r8a7791" }, }; +/* + * This is a really crude hack to work around core platform clock issues + */ +static const struct clk_name clk_enables[] = { + { "ether", NULL, "ee700000.ethernet" }, + { "i2c2", NULL, "e6530000.i2c" }, + { "msiof0", NULL, "e6e20000.spi" }, + { "qspi_mod", NULL, "e6b10000.spi" }, + { "thermal", NULL, "e61f0000.thermal" }, +}; + static void __init koelsch_add_standard_devices(void) { shmobile_clk_workaround(clk_names, ARRAY_SIZE(clk_names), false); + shmobile_clk_workaround(clk_enables, ARRAY_SIZE(clk_enables), true); r8a7791_add_dt_devices(); of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); -- 2.20.1