diff mbox

[v3,09/10] clk: samsung: exynos5433: Add CLK_IGNORE_UNUSED flag to clocks for sercure monitor call

Message ID 1430134597-14668-10-git-send-email-cw00.choi@samsung.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Chanwoo Choi April 27, 2015, 11:36 a.m. UTC 
From: Jonghwa Lee <jonghwa3.lee@samsung.com>

This patch adds 'CLK_IGNORE_UNUSED' flag to clocks which is required for
operation of secure monitor call (smc). System will hang when it executes 'smc'
with one of those clock is gated. All related clocks must be enabled.

Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
 drivers/clk/samsung/clk-exynos5433.c | 36 ++++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)

Comments

Krzysztof Kozlowski April 27, 2015, 1:11 p.m. UTC | #1 
2015-04-27 20:36 GMT+09:00 Chanwoo Choi <cw00.choi@samsung.com>:
> From: Jonghwa Lee <jonghwa3.lee@samsung.com>
>
> This patch adds 'CLK_IGNORE_UNUSED' flag to clocks which is required for
> operation of secure monitor call (smc). System will hang when it executes 'smc'
> with one of those clock is gated. All related clocks must be enabled.
>
> Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>

Hi,

Reviewed-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>

Best regards,
Krzysztof
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diff mbox

Patch

diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c
index 256fec0..39c9564 100644
--- a/drivers/clk/samsung/clk-exynos5433.c
+++ b/drivers/clk/samsung/clk-exynos5433.c
@@ -1390,7 +1390,7 @@  static struct samsung_gate_clock mif_gate_clks[] __initdata = {
 
 	/* ENABLE_ACLK_MIF2 */
 	GATE(CLK_ACLK_MIFND_266, "aclk_mifnd_266", "div_aclk_mif_266",
-			ENABLE_ACLK_MIF2, 20, 0, 0),
+			ENABLE_ACLK_MIF2, 20, CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_ACLK_PPMU_DREX1S3, "aclk_ppmu_drex1s3", "div_aclk_drex1",
 			ENABLE_ACLK_MIF2, 17, CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_ACLK_PPMU_DREX1S1, "aclk_ppmu_drex1s1", "div_aclk_drex1",
@@ -1833,39 +1833,39 @@  static struct samsung_gate_clock peris_gate_clks[] __initdata = {
 
 	/* ENABLE_PCLK_PERIS_SECURE_TZPC */
 	GATE(CLK_PCLK_TZPC12, "pclk_tzpc12", "aclk_peris_66",
-			ENABLE_PCLK_PERIS_SECURE_TZPC, 12, 0, 0),
+			ENABLE_PCLK_PERIS_SECURE_TZPC, 12, CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_PCLK_TZPC11, "pclk_tzpc11", "aclk_peris_66",
-			ENABLE_PCLK_PERIS_SECURE_TZPC, 11, 0, 0),
+			ENABLE_PCLK_PERIS_SECURE_TZPC, 11, CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_PCLK_TZPC10, "pclk_tzpc10", "aclk_peris_66",
-			ENABLE_PCLK_PERIS_SECURE_TZPC, 10, 0, 0),
+			ENABLE_PCLK_PERIS_SECURE_TZPC, 10, CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_PCLK_TZPC9, "pclk_tzpc9", "aclk_peris_66",
-			ENABLE_PCLK_PERIS_SECURE_TZPC, 9, 0, 0),
+			ENABLE_PCLK_PERIS_SECURE_TZPC, 9, CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_PCLK_TZPC8, "pclk_tzpc8", "aclk_peris_66",
-			ENABLE_PCLK_PERIS_SECURE_TZPC, 8, 0, 0),
+			ENABLE_PCLK_PERIS_SECURE_TZPC, 8, CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_PCLK_TZPC7, "pclk_tzpc7", "aclk_peris_66",
-			ENABLE_PCLK_PERIS_SECURE_TZPC, 7, 0, 0),
+			ENABLE_PCLK_PERIS_SECURE_TZPC, 7, CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_PCLK_TZPC6, "pclk_tzpc6", "aclk_peris_66",
-			ENABLE_PCLK_PERIS_SECURE_TZPC, 6, 0, 0),
+			ENABLE_PCLK_PERIS_SECURE_TZPC, 6, CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_PCLK_TZPC5, "pclk_tzpc5", "aclk_peris_66",
-			ENABLE_PCLK_PERIS_SECURE_TZPC, 5, 0, 0),
+			ENABLE_PCLK_PERIS_SECURE_TZPC, 5, CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_PCLK_TZPC4, "pclk_tzpc4", "aclk_peris_66",
-			ENABLE_PCLK_PERIS_SECURE_TZPC, 4, 0, 0),
+			ENABLE_PCLK_PERIS_SECURE_TZPC, 4, CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_PCLK_TZPC3, "pclk_tzpc3", "aclk_peris_66",
-			ENABLE_PCLK_PERIS_SECURE_TZPC, 3, 0, 0),
+			ENABLE_PCLK_PERIS_SECURE_TZPC, 3, CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_PCLK_TZPC2, "pclk_tzpc2", "aclk_peris_66",
-			ENABLE_PCLK_PERIS_SECURE_TZPC, 2, 0, 0),
+			ENABLE_PCLK_PERIS_SECURE_TZPC, 2, CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_PCLK_TZPC1, "pclk_tzpc1", "aclk_peris_66",
-			ENABLE_PCLK_PERIS_SECURE_TZPC, 1, 0, 0),
+			ENABLE_PCLK_PERIS_SECURE_TZPC, 1, CLK_IGNORE_UNUSED, 0),
 	GATE(CLK_PCLK_TZPC0, "pclk_tzpc0", "aclk_peris_66",
-			ENABLE_PCLK_PERIS_SECURE_TZPC, 0, 0, 0),
+			ENABLE_PCLK_PERIS_SECURE_TZPC, 0, CLK_IGNORE_UNUSED, 0),
 
 	/* ENABLE_PCLK_PERIS_SECURE_SECKEY_APBIF */
 	GATE(CLK_PCLK_SECKEY_APBIF, "pclk_seckey_apbif", "aclk_peris_66",
-			ENABLE_PCLK_PERIS_SECURE_SECKEY_APBIF, 0, 0, 0),
+			ENABLE_PCLK_PERIS_SECURE_SECKEY_APBIF, 0, CLK_IGNORE_UNUSED, 0),
 
 	/* ENABLE_PCLK_PERIS_SECURE_CHIPID_APBIF */
 	GATE(CLK_PCLK_CHIPID_APBIF, "pclk_chipid_apbif", "aclk_peris_66",
-			ENABLE_PCLK_PERIS_SECURE_CHIPID_APBIF, 0, 0, 0),
+			ENABLE_PCLK_PERIS_SECURE_CHIPID_APBIF, 0, CLK_IGNORE_UNUSED, 0),
 
 	/* ENABLE_PCLK_PERIS_SECURE_TOPRTC */
 	GATE(CLK_PCLK_TOPRTC, "pclk_toprtc", "aclk_peris_66",
@@ -1896,11 +1896,11 @@  static struct samsung_gate_clock peris_gate_clks[] __initdata = {
 
 	/* ENABLE_SCLK_PERIS_SECURE_SECKEY */
 	GATE(CLK_SCLK_SECKEY, "sclk_seckey", "oscclk_efuse_common",
-			ENABLE_SCLK_PERIS_SECURE_SECKEY, 0, 0, 0),
+			ENABLE_SCLK_PERIS_SECURE_SECKEY, 0, CLK_IGNORE_UNUSED, 0),
 
 	/* ENABLE_SCLK_PERIS_SECURE_CHIPID */
 	GATE(CLK_SCLK_CHIPID, "sclk_chipid", "oscclk_efuse_common",
-			ENABLE_SCLK_PERIS_SECURE_CHIPID, 0, 0, 0),
+			ENABLE_SCLK_PERIS_SECURE_CHIPID, 0, CLK_IGNORE_UNUSED, 0),
 
 	/* ENABLE_SCLK_PERIS_SECURE_TOPRTC */
 	GATE(CLK_SCLK_TOPRTC, "sclk_toprtc", "oscclk_efuse_common",