linux-kernel - [PATCH v4 08/25] firmware: xilinx: Remove eemi ops for clock

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu,  9 Apr 2020 12:11:57 -0700
From:   Jolly Shah <jolly.shah@...inx.com>
To:     ard.biesheuvel@...aro.org, mingo@...nel.org,
        gregkh@...uxfoundation.org, matt@...eblueprint.co.uk,
        sudeep.holla@....com, hkallweit1@...il.com, keescook@...omium.org,
        dmitry.torokhov@...il.com, michal.simek@...inx.com
Cc:     rajanv@...inx.com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Rajan Vaja <rajan.vaja@...inx.com>,
        Jolly Shah <jolly.shah@...inx.com>
Subject: [PATCH v4 08/25] firmware: xilinx: Remove eemi ops for clock_getdivider

From: Rajan Vaja <rajan.vaja@...inx.com>

Use direct function call instead of using eemi ops for
clock_getdivider.

Signed-off-by: Rajan Vaja <rajan.vaja@...inx.com>
Signed-off-by: Jolly Shah <jolly.shah@...inx.com>
---
 drivers/clk/zynqmp/divider.c         | 6 ++----
 drivers/clk/zynqmp/pll.c             | 2 +-
 drivers/firmware/xilinx/zynqmp.c     | 4 ++--
 include/linux/firmware/xlnx-zynqmp.h | 6 +++++-
 4 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/clk/zynqmp/divider.c b/drivers/clk/zynqmp/divider.c
index 13041cd..8eed715 100644
--- a/drivers/clk/zynqmp/divider.c
+++ b/drivers/clk/zynqmp/divider.c
@@ -83,9 +83,8 @@ static unsigned long zynqmp_clk_divider_recalc_rate(struct clk_hw *hw,
 	u32 div_type = divider->div_type;
 	u32 div, value;
 	int ret;
-	const struct zynqmp_eemi_ops *eemi_ops = zynqmp_pm_get_eemi_ops();
 
-	ret = eemi_ops->clock_getdivider(clk_id, &div);
+	ret = zynqmp_pm_clock_getdivider(clk_id, &div);
 
 	if (ret)
 		pr_warn_once("%s() get divider failed for %s, ret = %d\n",
@@ -163,11 +162,10 @@ static long zynqmp_clk_divider_round_rate(struct clk_hw *hw,
 	u32 div_type = divider->div_type;
 	u32 bestdiv;
 	int ret;
-	const struct zynqmp_eemi_ops *eemi_ops = zynqmp_pm_get_eemi_ops();
 
 	/* if read only, just return current value */
 	if (divider->flags & CLK_DIVIDER_READ_ONLY) {
-		ret = eemi_ops->clock_getdivider(clk_id, &bestdiv);
+		ret = zynqmp_pm_clock_getdivider(clk_id, &bestdiv);
 
 		if (ret)
 			pr_warn_once("%s() get divider failed for %s, ret = %d\n",
diff --git a/drivers/clk/zynqmp/pll.c b/drivers/clk/zynqmp/pll.c
index 95fad06..73fb5bb 100644
--- a/drivers/clk/zynqmp/pll.c
+++ b/drivers/clk/zynqmp/pll.c
@@ -141,7 +141,7 @@ static unsigned long zynqmp_pll_recalc_rate(struct clk_hw *hw,
 	int ret;
 	const struct zynqmp_eemi_ops *eemi_ops = zynqmp_pm_get_eemi_ops();
 
-	ret = eemi_ops->clock_getdivider(clk_id, &fbdiv);
+	ret = zynqmp_pm_clock_getdivider(clk_id, &fbdiv);
 	if (ret)
 		pr_warn_once("%s() get divider failed for %s, ret = %d\n",
 			     __func__, clk_name, ret);
diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c
index ef2412d..5782b5c 100644
--- a/drivers/firmware/xilinx/zynqmp.c
+++ b/drivers/firmware/xilinx/zynqmp.c
@@ -422,7 +422,7 @@ EXPORT_SYMBOL_GPL(zynqmp_pm_clock_setdivider);
  *
  * Return: Returns status, either success or error+reason
  */
-static int zynqmp_pm_clock_getdivider(u32 clock_id, u32 *divider)
+int zynqmp_pm_clock_getdivider(u32 clock_id, u32 *divider)
 {
 	u32 ret_payload[PAYLOAD_ARG_CNT];
 	int ret;
@@ -433,6 +433,7 @@ static int zynqmp_pm_clock_getdivider(u32 clock_id, u32 *divider)
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(zynqmp_pm_clock_getdivider);
 
 /**
  * zynqmp_pm_clock_setrate() - Set the clock rate for given id
@@ -741,7 +742,6 @@ static int zynqmp_pm_aes_engine(const u64 address, u32 *out)
 }
 
 static const struct zynqmp_eemi_ops eemi_ops = {
-	.clock_getdivider = zynqmp_pm_clock_getdivider,
 	.clock_setrate = zynqmp_pm_clock_setrate,
 	.clock_getrate = zynqmp_pm_clock_getrate,
 	.clock_setparent = zynqmp_pm_clock_setparent,
diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h
index 023f1f9..3bda22f 100644
--- a/include/linux/firmware/xlnx-zynqmp.h
+++ b/include/linux/firmware/xlnx-zynqmp.h
@@ -296,7 +296,6 @@ struct zynqmp_pm_query_data {
 struct zynqmp_eemi_ops {
 	int (*fpga_load)(const u64 address, const u32 size, const u32 flags);
 	int (*fpga_get_status)(u32 *value);
-	int (*clock_getdivider)(u32 clock_id, u32 *divider);
 	int (*clock_setrate)(u32 clock_id, u64 rate);
 	int (*clock_getrate)(u32 clock_id, u64 *rate);
 	int (*clock_setparent)(u32 clock_id, u32 parent_id);
@@ -331,6 +330,7 @@ int zynqmp_pm_clock_enable(u32 clock_id);
 int zynqmp_pm_clock_disable(u32 clock_id);
 int zynqmp_pm_clock_getstate(u32 clock_id, u32 *state);
 int zynqmp_pm_clock_setdivider(u32 clock_id, u32 divider);
+int zynqmp_pm_clock_getdivider(u32 clock_id, u32 *divider);
 #else
 static inline struct zynqmp_eemi_ops *zynqmp_pm_get_eemi_ops(void)
 {
@@ -365,6 +365,10 @@ static inline int zynqmp_pm_clock_setdivider(u32 clock_id, u32 divider)
 {
 	return -ENODEV;
 }
+static inline int zynqmp_pm_clock_getdivider(u32 clock_id, u32 *divider)
+{
+	return -ENODEV;
+}
 #endif
 
 #endif /* __FIRMWARE_ZYNQMP_H__ */
-- 
2.7.4