From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932534AbcEQFIM (ORCPT ); Tue, 17 May 2016 01:08:12 -0400 Received: from smtpout.microchip.com ([198.175.253.82]:41903 "EHLO email.microchip.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S932369AbcEQFIK (ORCPT ); Tue, 17 May 2016 01:08:10 -0400 From: Purna Chandra Mandal To: CC: , Ralf Baechle , Purna Chandra Mandal , Joshua Henderson , Joshua Henderson Subject: [PATCH 03/11] MIPS: pic32mzda: fix getting timer clock rate. Date: Tue, 17 May 2016 10:35:52 +0530 Message-ID: <1463461560-9629-3-git-send-email-purna.mandal@microchip.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1463461560-9629-1-git-send-email-purna.mandal@microchip.com> References: <1463461560-9629-1-git-send-email-purna.mandal@microchip.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 --- Note: Please pull this complete series through the MIPS tree. --- 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 ca6a62b..62a0a78 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(); } -- 1.8.3.1