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Date: Mon, 14 Nov 2022 17:02:16 -0600
From: Dinh Nguyen <dinguyen@...nel.org>
To: jh80.chung@...sung.com
Cc: dinguyen@...nel.org, ulf.hansson@...aro.org, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org, mturquette@...libre.com,
sboyd@...nel.org, linux-mmc@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-clk@...r.kernel.org
Subject: [PATCHv9 5/6] clk: socfpga: remove the setting of clk-phase for sdmmc_clk
Now that the SDMMC driver supports setting the clk-phase, we can remove
the need to do it in the clock driver.
Acked-by: Stephen Boyd <sboyd@...nel.org>
Signed-off-by: Dinh Nguyen <dinguyen@...nel.org>
---
v9: no changes
v8: no changes
v7: add acked-by
v6: remove unused clk_phase in clk-gate.c
v5: new
---
drivers/clk/socfpga/clk-gate-a10.c | 68 ------------------------------
drivers/clk/socfpga/clk-gate.c | 61 ---------------------------
drivers/clk/socfpga/clk.h | 1 -
3 files changed, 130 deletions(-)
diff --git a/drivers/clk/socfpga/clk-gate-a10.c b/drivers/clk/socfpga/clk-gate-a10.c
index 738c53391e39..7cdf2f07c79b 100644
--- a/drivers/clk/socfpga/clk-gate-a10.c
+++ b/drivers/clk/socfpga/clk-gate-a10.c
@@ -35,59 +35,7 @@ static unsigned long socfpga_gate_clk_recalc_rate(struct clk_hw *hwclk,
return parent_rate / div;
}
-static int socfpga_clk_prepare(struct clk_hw *hwclk)
-{
- struct socfpga_gate_clk *socfpgaclk = to_socfpga_gate_clk(hwclk);
- int i;
- u32 hs_timing;
- u32 clk_phase[2];
-
- if (socfpgaclk->clk_phase[0] || socfpgaclk->clk_phase[1]) {
- for (i = 0; i < ARRAY_SIZE(clk_phase); i++) {
- switch (socfpgaclk->clk_phase[i]) {
- case 0:
- clk_phase[i] = 0;
- break;
- case 45:
- clk_phase[i] = 1;
- break;
- case 90:
- clk_phase[i] = 2;
- break;
- case 135:
- clk_phase[i] = 3;
- break;
- case 180:
- clk_phase[i] = 4;
- break;
- case 225:
- clk_phase[i] = 5;
- break;
- case 270:
- clk_phase[i] = 6;
- break;
- case 315:
- clk_phase[i] = 7;
- break;
- default:
- clk_phase[i] = 0;
- break;
- }
- }
-
- hs_timing = SYSMGR_SDMMC_CTRL_SET_AS10(clk_phase[0], clk_phase[1]);
- if (!IS_ERR(socfpgaclk->sys_mgr_base_addr))
- regmap_write(socfpgaclk->sys_mgr_base_addr,
- SYSMGR_SDMMCGRP_CTRL_OFFSET, hs_timing);
- else
- pr_err("%s: cannot set clk_phase because sys_mgr_base_addr is not available!\n",
- __func__);
- }
- return 0;
-}
-
static struct clk_ops gateclk_ops = {
- .prepare = socfpga_clk_prepare,
.recalc_rate = socfpga_gate_clk_recalc_rate,
};
@@ -96,7 +44,6 @@ static void __init __socfpga_gate_init(struct device_node *node,
{
u32 clk_gate[2];
u32 div_reg[3];
- u32 clk_phase[2];
u32 fixed_div;
struct clk_hw *hw_clk;
struct socfpga_gate_clk *socfpga_clk;
@@ -136,21 +83,6 @@ static void __init __socfpga_gate_init(struct device_node *node,
socfpga_clk->div_reg = NULL;
}
- rc = of_property_read_u32_array(node, "clk-phase", clk_phase, 2);
- if (!rc) {
- socfpga_clk->clk_phase[0] = clk_phase[0];
- socfpga_clk->clk_phase[1] = clk_phase[1];
-
- socfpga_clk->sys_mgr_base_addr =
- syscon_regmap_lookup_by_compatible("altr,sys-mgr");
- if (IS_ERR(socfpga_clk->sys_mgr_base_addr)) {
- pr_err("%s: failed to find altr,sys-mgr regmap!\n",
- __func__);
- kfree(socfpga_clk);
- return;
- }
- }
-
of_property_read_string(node, "clock-output-names", &clk_name);
init.name = clk_name;
diff --git a/drivers/clk/socfpga/clk-gate.c b/drivers/clk/socfpga/clk-gate.c
index 53d6e3ec4309..3e347b9e9eff 100644
--- a/drivers/clk/socfpga/clk-gate.c
+++ b/drivers/clk/socfpga/clk-gate.c
@@ -108,61 +108,7 @@ static unsigned long socfpga_clk_recalc_rate(struct clk_hw *hwclk,
return parent_rate / div;
}
-static int socfpga_clk_prepare(struct clk_hw *hwclk)
-{
- struct socfpga_gate_clk *socfpgaclk = to_socfpga_gate_clk(hwclk);
- struct regmap *sys_mgr_base_addr;
- int i;
- u32 hs_timing;
- u32 clk_phase[2];
-
- if (socfpgaclk->clk_phase[0] || socfpgaclk->clk_phase[1]) {
- sys_mgr_base_addr = syscon_regmap_lookup_by_compatible("altr,sys-mgr");
- if (IS_ERR(sys_mgr_base_addr)) {
- pr_err("%s: failed to find altr,sys-mgr regmap!\n", __func__);
- return -EINVAL;
- }
-
- for (i = 0; i < 2; i++) {
- switch (socfpgaclk->clk_phase[i]) {
- case 0:
- clk_phase[i] = 0;
- break;
- case 45:
- clk_phase[i] = 1;
- break;
- case 90:
- clk_phase[i] = 2;
- break;
- case 135:
- clk_phase[i] = 3;
- break;
- case 180:
- clk_phase[i] = 4;
- break;
- case 225:
- clk_phase[i] = 5;
- break;
- case 270:
- clk_phase[i] = 6;
- break;
- case 315:
- clk_phase[i] = 7;
- break;
- default:
- clk_phase[i] = 0;
- break;
- }
- }
- hs_timing = SYSMGR_SDMMC_CTRL_SET(clk_phase[0], clk_phase[1]);
- regmap_write(sys_mgr_base_addr, SYSMGR_SDMMCGRP_CTRL_OFFSET,
- hs_timing);
- }
- return 0;
-}
-
static struct clk_ops gateclk_ops = {
- .prepare = socfpga_clk_prepare,
.recalc_rate = socfpga_clk_recalc_rate,
.get_parent = socfpga_clk_get_parent,
.set_parent = socfpga_clk_set_parent,
@@ -172,7 +118,6 @@ void __init socfpga_gate_init(struct device_node *node)
{
u32 clk_gate[2];
u32 div_reg[3];
- u32 clk_phase[2];
u32 fixed_div;
struct clk_hw *hw_clk;
struct socfpga_gate_clk *socfpga_clk;
@@ -218,12 +163,6 @@ void __init socfpga_gate_init(struct device_node *node)
socfpga_clk->div_reg = NULL;
}
- rc = of_property_read_u32_array(node, "clk-phase", clk_phase, 2);
- if (!rc) {
- socfpga_clk->clk_phase[0] = clk_phase[0];
- socfpga_clk->clk_phase[1] = clk_phase[1];
- }
-
of_property_read_string(node, "clock-output-names", &clk_name);
init.name = clk_name;
diff --git a/drivers/clk/socfpga/clk.h b/drivers/clk/socfpga/clk.h
index d80115fbdd6a..9a2fb2dde5b8 100644
--- a/drivers/clk/socfpga/clk.h
+++ b/drivers/clk/socfpga/clk.h
@@ -50,7 +50,6 @@ struct socfpga_gate_clk {
u32 width; /* only valid if div_reg != 0 */
u32 shift; /* only valid if div_reg != 0 */
u32 bypass_shift; /* only valid if bypass_reg != 0 */
- u32 clk_phase[2];
};
struct socfpga_periph_clk {
--
2.25.1
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