On 2016年08月31日 09:37, Shawn Lin wrote:
aclk_emmc_grf is used for accessing corecfg_* of emmc stuff within
GRF block. We don't need to add CLK_IGNORE_UNUSED for it now as the
emmc driver will enable/disable it explicitly when needed.
Signed-off-by: Shawn Lin <shawn....@rock-chips.com>
This patchset test result:
localhost driver # cat /sys/kernel/debug/clk/clk_summary | grep emmc
gpll_aclk_emmc_src 1 1
594000000 0 0
aclk_emmc 3 5
198000000 0 0
aclk_emmcgrf 1 2
198000000 0 0
aclk_emmc_noc 1 1
198000000 0 0
aclk_emmccore 0 0
198000000 0 0
clk_emmc 1 2
148500000 0 0
emmc_cardclock 0 0
148500000 0 0
cpll_aclk_emmc_src 0 0
800000000 0 0
After unbind driver.
localhost driver # cat /sys/kernel/debug/clk/clk_summary | grep emmc
gpll_aclk_emmc_src 1 1
594000000 0 0
aclk_emmc 1 2
198000000 0 0
aclk_emmcgrf 0 0
198000000 0 0
aclk_emmc_noc 1 1
198000000 0 0
aclk_emmccore 0 0
198000000 0 0
clk_emmc 0 0
148500000 0 0
cpll_aclk_emmc_src 0 0
800000000 0 0
And aclk_emmcgrf(Bit 10, when high, enable clock) had gate.
localhost driver # mem r 0xff760380
0x00000415
It works sane, so
Tested-by: Ziyuan Xu <xzy...@rock-chips.com>
---
Changes in v2: None
drivers/clk/rockchip/clk-rk3399.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/rockchip/clk-rk3399.c
b/drivers/clk/rockchip/clk-rk3399.c
index ede6c47..908f684 100644
--- a/drivers/clk/rockchip/clk-rk3399.c
+++ b/drivers/clk/rockchip/clk-rk3399.c
@@ -934,7 +934,7 @@ static struct rockchip_clk_branch rk3399_clk_branches[]
__initdata = {
RK3399_CLKGATE_CON(32), 8, GFLAGS),
GATE(ACLK_EMMC_NOC, "aclk_emmc_noc", "aclk_emmc", CLK_IGNORE_UNUSED,
RK3399_CLKGATE_CON(32), 9, GFLAGS),
- GATE(ACLK_EMMC_GRF, "aclk_emmcgrf", "aclk_emmc", CLK_IGNORE_UNUSED,
+ GATE(ACLK_EMMC_GRF, "aclk_emmcgrf", "aclk_emmc", 0,
RK3399_CLKGATE_CON(32), 10, GFLAGS),
/* perilp0 */
