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clk: shmobile: rcar-gen2: Fix qspi divisor

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The qspi clock divisor is incorrectly set to twice the value it should
have, possibly because it has been computed based on PLL1 as the clock
parent instead of PLL1 / 2 (the datasheets specifies the qspi nominal
frequencies, not the divisor values). Fix it.

This bug introduced in v3.14-rc1 breaks various devices on the Lager and
Kolesh shmobile boards and should thus be considered as a regression for
which a fix during the -rc series is appropriate.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Laurent Pinchart 2014-01-07 13:54:26 +01:00
parent b29dd35909
commit 4a9c3ce1d2
1 changed files with 1 additions and 1 deletions
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2
drivers/clk/shmobile/clk-rcar-gen2.c
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@ -215,7 +215,7 @@ rcar_gen2_cpg_register_clock(struct device_node *np, struct rcar_gen2_cpg *cpg,
} else if (!strcmp(name, "qspi")) {
parent_name = "pll1_div2";
div = (cpg_mode & (BIT(3) | BIT(2) | BIT(1))) == BIT(2)
? 16 : 20;
? 8 : 10;
} else if (!strcmp(name, "sdh")) {
parent_name = "pll1_div2";
table = cpg_sdh_div_table;