From 6e4ad1b413604b9130bdbe532aafdbd47ff5318e Mon Sep 17 00:00:00 2001 From: Purna Chandra Mandal Date: Tue, 17 May 2016 10:35:52 +0530 Subject: [PATCH] MIPS: pic32mzda: fix getting timer clock rate. PIC32 clock driver is now implemented as platform driver instead of as part of of_clk_init(). It meants all the clock modules are available quite late in the boot sequence. So request for CPU clock by clk_get_sys() and clk_get_rate() to find c0_timer rate fails. To fix this use PIC32 specific early clock functions implemented for early console support. Signed-off-by: Purna Chandra Mandal Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: Joshua Henderson Patchwork: https://patchwork.linux-mips.org/patch/13262/ Signed-off-by: Ralf Baechle --- arch/mips/pic32/pic32mzda/time.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/arch/mips/pic32/pic32mzda/time.c b/arch/mips/pic32/pic32mzda/time.c index ca6a62bb10db..62a0a78b6c64 100644 --- a/arch/mips/pic32/pic32mzda/time.c +++ b/arch/mips/pic32/pic32mzda/time.c @@ -11,13 +11,12 @@ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * for more details. */ -#include #include #include #include +#include #include #include -#include #include @@ -58,16 +57,12 @@ unsigned int get_c0_compare_int(void) void __init plat_time_init(void) { - struct clk *clk; + unsigned long rate = pic32_get_pbclk(7); of_clk_init(NULL); - clk = clk_get_sys("cpu_clk", NULL); - if (IS_ERR(clk)) - panic("unable to get CPU clock, err=%ld", PTR_ERR(clk)); - clk_prepare_enable(clk); - pr_info("CPU Clock: %ldMHz\n", clk_get_rate(clk) / 1000000); - mips_hpt_frequency = clk_get_rate(clk) / 2; + pr_info("CPU Clock: %ldMHz\n", rate / 1000000); + mips_hpt_frequency = rate / 2; clocksource_probe(); }