Add a bit more debug messages that can be helpful when debugging the clock setup.
Signed-off-by: Maxime Ripard <[email protected]> --- drivers/mmc/host/sunxi-mmc.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c index f0f6922bca8a..40ed287ceb1c 100644 --- a/drivers/mmc/host/sunxi-mmc.c +++ b/drivers/mmc/host/sunxi-mmc.c @@ -661,6 +661,9 @@ static int sunxi_mmc_oclk_onoff(struct sunxi_mmc_host *host, u32 oclk_en) unsigned long expire = jiffies + msecs_to_jiffies(750); u32 rval; + dev_dbg(mmc_dev(host->mmc), "%sabling the clock\n", + oclk_en ? "en" : "dis"); + rval = mmc_readl(host, REG_CLKCR); rval &= ~(SDXC_CARD_CLOCK_ON | SDXC_LOW_POWER_ON | SDXC_MASK_DATA0); @@ -737,6 +740,7 @@ static int sunxi_mmc_clk_set_phase(struct sunxi_mmc_host *host, index = SDXC_CLK_50M_DDR; } } else { + dev_dbg(mmc_dev(host->mmc), "Invalid clock... returning\n"); return -EINVAL; } @@ -753,6 +757,9 @@ static int sunxi_mmc_clk_set_rate(struct sunxi_mmc_host *host, u32 rval, clock = ios->clock; int ret; + dev_dbg(mmc_dev(host->mmc), "setting clk to %u (requested %u)\n", + clock, ios->clock); + ret = sunxi_mmc_oclk_onoff(host, 0); if (ret) return ret; @@ -771,8 +778,7 @@ static int sunxi_mmc_clk_set_rate(struct sunxi_mmc_host *host, clock, rate); return rate; } - dev_dbg(mmc_dev(host->mmc), "setting clk to %d, rounded %ld\n", - clock, rate); + dev_dbg(mmc_dev(host->mmc), "Rounded clk to %ld\n", rate); /* setting clock rate */ ret = clk_set_rate(host->clk_mmc, rate); -- git-series 0.8.11
