From: Lorenzo Bianconi <lorenzo@kernel.org>
To: linux-clk@vger.kernel.org
Cc: p.zabel@pengutronix.de, mturquette@baylibre.com,
sboyd@kernel.org, lorenzo.bianconi83@gmail.com, conor@kernel.org,
linux-arm-kernel@lists.infradead.org, robh+dt@kernel.org,
krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org,
devicetree@vger.kernel.org, nbd@nbd.name, john@phrozen.org,
dd@embedd.com, catalin.marinas@arm.com, will@kernel.org,
upstream@airoha.com, angelogioacchino.delregno@collabora.com
Subject: [PATCH 5/5] clk: en7523: Remove pcie prepare/unpreare callbacks for EN7581 SoC
Date: Wed, 15 May 2024 14:58:51 +0200 [thread overview]
Message-ID: <92afb628058a31357e0c85ed7e41eed0a780bc0f.1715777643.git.lorenzo@kernel.org> (raw)
In-Reply-To: <cover.1715777643.git.lorenzo@kernel.org>
Get rid of prepare and unpreare callbacks for PCIe clock since they can
be modeled as a reset line cosumed by the PCIe driver
(pcie-mediatek-gen3)
Tested-by: Zhengping Zhang <zhengping.zhang@airoha.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
drivers/clk/clk-en7523.c | 41 ++--------------------------------------
1 file changed, 2 insertions(+), 39 deletions(-)
diff --git a/drivers/clk/clk-en7523.c b/drivers/clk/clk-en7523.c
index 18798b692b68..5f2127a4b150 100644
--- a/drivers/clk/clk-en7523.c
+++ b/drivers/clk/clk-en7523.c
@@ -291,9 +291,8 @@ static struct clk_hw *en7523_register_pcie_clk(struct device *dev,
cg->base = np_base;
cg->hw.init = &init;
- if (init.ops->disable)
- init.ops->disable(&cg->hw);
- init.ops->unprepare(&cg->hw);
+ if (init.ops->unprepare)
+ init.ops->unprepare(&cg->hw);
if (clk_hw_register(dev, &cg->hw))
return NULL;
@@ -311,23 +310,6 @@ static int en7581_pci_is_enabled(struct clk_hw *hw)
return (val & mask) == mask;
}
-static int en7581_pci_prepare(struct clk_hw *hw)
-{
- struct en_clk_gate *cg = container_of(hw, struct en_clk_gate, hw);
- void __iomem *np_base = cg->base;
- u32 val, mask;
-
- mask = REG_RESET_CONTROL_PCIE1 | REG_RESET_CONTROL_PCIE2 |
- REG_RESET_CONTROL_PCIEHB;
- val = readl(np_base + REG_RESET_CONTROL1);
- writel(val & ~mask, np_base + REG_RESET_CONTROL1);
- val = readl(np_base + REG_RESET_CONTROL2);
- writel(val & ~REG_RESET2_CONTROL_PCIE2, np_base + REG_RESET_CONTROL2);
- usleep_range(5000, 10000);
-
- return 0;
-}
-
static int en7581_pci_enable(struct clk_hw *hw)
{
struct en_clk_gate *cg = container_of(hw, struct en_clk_gate, hw);
@@ -344,23 +326,6 @@ static int en7581_pci_enable(struct clk_hw *hw)
return 0;
}
-static void en7581_pci_unprepare(struct clk_hw *hw)
-{
- struct en_clk_gate *cg = container_of(hw, struct en_clk_gate, hw);
- void __iomem *np_base = cg->base;
- u32 val, mask;
-
- mask = REG_RESET_CONTROL_PCIE1 | REG_RESET_CONTROL_PCIE2 |
- REG_RESET_CONTROL_PCIEHB;
- val = readl(np_base + REG_RESET_CONTROL1);
- writel(val | mask, np_base + REG_RESET_CONTROL1);
- mask = REG_RESET_CONTROL_PCIE1 | REG_RESET_CONTROL_PCIE2;
- writel(val | mask, np_base + REG_RESET_CONTROL1);
- val = readl(np_base + REG_RESET_CONTROL2);
- writel(val | REG_RESET_CONTROL_PCIE2, np_base + REG_RESET_CONTROL2);
- msleep(100);
-}
-
static void en7581_pci_disable(struct clk_hw *hw)
{
struct en_clk_gate *cg = container_of(hw, struct en_clk_gate, hw);
@@ -563,9 +528,7 @@ static const struct en_clk_soc_data en7523_data = {
static const struct en_clk_soc_data en7581_data = {
.pcie_ops = {
.is_enabled = en7581_pci_is_enabled,
- .prepare = en7581_pci_prepare,
.enable = en7581_pci_enable,
- .unprepare = en7581_pci_unprepare,
.disable = en7581_pci_disable,
},
.reset_data = {
--
2.45.0
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next prev parent reply other threads:[~2024-05-15 12:59 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-15 12:58 [PATCH 0/5] Add reset support to EN7581 clk driver Lorenzo Bianconi
2024-05-15 12:58 ` [PATCH 1/5] dt-bindings: clock: airoha: Add reset support to EN7581 clock binding Lorenzo Bianconi
2024-05-15 16:23 ` Conor Dooley
2024-05-15 12:58 ` [PATCH 2/5] dt-bindings: reset: Add reset definitions for EN7581 SoC Lorenzo Bianconi
2024-05-15 16:27 ` Conor Dooley
2024-05-16 7:34 ` Lorenzo Bianconi
2024-05-16 9:46 ` AngeloGioacchino Del Regno
2024-05-16 11:14 ` Lorenzo Bianconi
2024-05-16 11:38 ` AngeloGioacchino Del Regno
2024-05-16 15:59 ` Lorenzo Bianconi
2024-05-15 12:58 ` [PATCH 3/5] arm64: dts: airoha: Add reset-controller support to EN7581 clock node Lorenzo Bianconi
2024-05-15 12:58 ` [PATCH 4/5] clk: en7523: Add reset-controller support for EN7581 SoC Lorenzo Bianconi
2024-05-16 9:50 ` AngeloGioacchino Del Regno
2024-05-16 11:22 ` Lorenzo Bianconi
2024-05-15 12:58 ` Lorenzo Bianconi [this message]
2024-05-16 9:51 ` [PATCH 5/5] clk: en7523: Remove pcie prepare/unpreare callbacks " AngeloGioacchino Del Regno
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