diff mbox series

[2/3] Revert "clk: mmp2: add SP clock"

Message ID 20190121062255.551587-3-lkundrak@v3.sk (mailing list archive)
State Mainlined
Commit 0acb69e7b904135ff540bc483942c0dba40ecdb9
Headers show
Series Stop managing the SP clock | expand

Commit Message

Lubomir Rintel Jan. 21, 2019, 6:22 a.m. UTC 
It seems that the kernel has no business managing this clock: once the SP
clock is disabled, it's not sufficient to just enable in order to bring the
SP core back up. Just let the firmware keep it enabled and don't expose it
to drivers.

This reverts commit fc27c2394d96fd19854b7e2d3f0e60df0d86fc90.

Link: https://lore.kernel.org/lkml/154783267051.169631.3197836544646625747@swboyd.mtv.corp.google.com/
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
---
 drivers/clk/mmp/clk-of-mmp2.c | 4 ----
 1 file changed, 4 deletions(-)

Comments

Stephen Boyd Jan. 24, 2019, 6:56 p.m. UTC | #1 
Quoting Lubomir Rintel (2019-01-20 22:22:55)
> It seems that the kernel has no business managing this clock: once the SP
> clock is disabled, it's not sufficient to just enable in order to bring the
> SP core back up. Just let the firmware keep it enabled and don't expose it
> to drivers.
> 
> This reverts commit fc27c2394d96fd19854b7e2d3f0e60df0d86fc90.
> 
> Link: https://lore.kernel.org/lkml/154783267051.169631.3197836544646625747@swboyd.mtv.corp.google.com/
> Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
> ---

Applied to clk-fixes
diff mbox series

Patch

diff --git a/drivers/clk/mmp/clk-of-mmp2.c b/drivers/clk/mmp/clk-of-mmp2.c
index 61fefc046ec5..d083b860f083 100644
--- a/drivers/clk/mmp/clk-of-mmp2.c
+++ b/drivers/clk/mmp/clk-of-mmp2.c
@@ -53,7 +53,6 @@ 
 #define APMU_DISP1	0x110
 #define APMU_CCIC0	0x50
 #define APMU_CCIC1	0xf4
-#define APMU_SP		0x68
 #define MPMU_UART_PLL	0x14
 
 struct mmp2_clk_unit {
@@ -210,8 +209,6 @@  static struct mmp_clk_mix_config ccic1_mix_config = {
 	.reg_info = DEFINE_MIX_REG_INFO(4, 16, 2, 6, 32),
 };
 
-static DEFINE_SPINLOCK(sp_lock);
-
 static struct mmp_param_mux_clk apmu_mux_clks[] = {
 	{MMP2_CLK_DISP0_MUX, "disp0_mux", disp_parent_names, ARRAY_SIZE(disp_parent_names), CLK_SET_RATE_PARENT, APMU_DISP0, 6, 2, 0, &disp0_lock},
 	{MMP2_CLK_DISP1_MUX, "disp1_mux", disp_parent_names, ARRAY_SIZE(disp_parent_names), CLK_SET_RATE_PARENT, APMU_DISP1, 6, 2, 0, &disp1_lock},
@@ -242,7 +239,6 @@  static struct mmp_param_gate_clk apmu_gate_clks[] = {
 	{MMP2_CLK_CCIC1, "ccic1_clk", "ccic1_mix_clk", CLK_SET_RATE_PARENT, APMU_CCIC1, 0x1b, 0x1b, 0x0, 0, &ccic1_lock},
 	{MMP2_CLK_CCIC1_PHY, "ccic1_phy_clk", "ccic1_mix_clk", CLK_SET_RATE_PARENT, APMU_CCIC1, 0x24, 0x24, 0x0, 0, &ccic1_lock},
 	{MMP2_CLK_CCIC1_SPHY, "ccic1_sphy_clk", "ccic1_sphy_div", CLK_SET_RATE_PARENT, APMU_CCIC1, 0x300, 0x300, 0x0, 0, &ccic1_lock},
-	{MMP2_CLK_SP, "sp_clk", NULL, CLK_SET_RATE_PARENT, APMU_SP, 0x1b, 0x1b, 0x0, 0, &sp_lock},
 };
 
 static void mmp2_axi_periph_clk_init(struct mmp2_clk_unit *pxa_unit)