From mboxrd@z Thu Jan 1 00:00:00 1970 From: alexandre.belloni@free-electrons.com (Alexandre Belloni) Date: Tue, 1 Jul 2014 16:12:12 +0200 Subject: [PATCH 03/33] clk: at91: main: warn when the main crystal frequency is not set In-Reply-To: <1404223962-30471-1-git-send-email-alexandre.belloni@free-electrons.com> References: <1404223962-30471-1-git-send-email-alexandre.belloni@free-electrons.com> Message-ID: <1404223962-30471-4-git-send-email-alexandre.belloni@free-electrons.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org When the main crystal frequency is not set, the main clock is approximated using the MAINF value in the CKGR_MCFR register. Warn the user in that case. Signed-off-by: Alexandre Belloni --- drivers/clk/at91/clk-main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/clk/at91/clk-main.c b/drivers/clk/at91/clk-main.c index 733306131b99..59fa3cc96c9e 100644 --- a/drivers/clk/at91/clk-main.c +++ b/drivers/clk/at91/clk-main.c @@ -388,6 +388,7 @@ static unsigned long clk_main_recalc_rate(struct at91_pmc *pmc, if (parent_rate) return parent_rate; + pr_warn("Main crystal frequency not set, using approximate value\n"); tmp = pmc_read(pmc, AT91_CKGR_MCFR); if (!(tmp & AT91_PMC_MAINRDY)) return 0; -- 1.9.1