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Message-Id: <20200609131404.17523-3-digetx@gmail.com>
Date: Tue, 9 Jun 2020 16:13:29 +0300
From: Dmitry Osipenko <digetx@...il.com>
To: Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>,
Georgi Djakov <georgi.djakov@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...nel.org>,
Peter De Schrijver <pdeschrijver@...dia.com>,
MyungJoo Ham <myungjoo.ham@...sung.com>,
Kyungmin Park <kyungmin.park@...sung.com>,
Chanwoo Choi <cw00.choi@...sung.com>,
Mikko Perttunen <cyndis@...si.fi>
Cc: Artur Świgoń <a.swigon@...sung.com>,
linux-tegra@...r.kernel.org, linux-pm@...r.kernel.org,
linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
devicetree@...r.kernel.org
Subject: [PATCH v4 02/37] clk: tegra: Remove Memory Controller lock
The shared Memory Controller lock isn't needed since the time when
Memory Clock was made read-only. The lock could be removed safely now.
Hence let's remove it, this will help a tad to make further patches
cleaner.
Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
drivers/clk/tegra/clk-divider.c | 4 ++--
drivers/clk/tegra/clk-tegra114.c | 6 ++----
drivers/clk/tegra/clk-tegra124.c | 7 ++-----
drivers/clk/tegra/clk-tegra20.c | 3 +--
drivers/clk/tegra/clk-tegra30.c | 3 +--
drivers/clk/tegra/clk.h | 2 +-
6 files changed, 9 insertions(+), 16 deletions(-)
diff --git a/drivers/clk/tegra/clk-divider.c b/drivers/clk/tegra/clk-divider.c
index 38daf483ddf1..56adb01638cc 100644
--- a/drivers/clk/tegra/clk-divider.c
+++ b/drivers/clk/tegra/clk-divider.c
@@ -177,10 +177,10 @@ static const struct clk_div_table mc_div_table[] = {
};
struct clk *tegra_clk_register_mc(const char *name, const char *parent_name,
- void __iomem *reg, spinlock_t *lock)
+ void __iomem *reg)
{
return clk_register_divider_table(NULL, name, parent_name,
CLK_IS_CRITICAL,
reg, 16, 1, CLK_DIVIDER_READ_ONLY,
- mc_div_table, lock);
+ mc_div_table, NULL);
}
diff --git a/drivers/clk/tegra/clk-tegra114.c b/drivers/clk/tegra/clk-tegra114.c
index bc9e47a4cb60..ca8d9737d301 100644
--- a/drivers/clk/tegra/clk-tegra114.c
+++ b/drivers/clk/tegra/clk-tegra114.c
@@ -134,7 +134,6 @@ static DEFINE_SPINLOCK(pll_d_lock);
static DEFINE_SPINLOCK(pll_d2_lock);
static DEFINE_SPINLOCK(pll_u_lock);
static DEFINE_SPINLOCK(pll_re_lock);
-static DEFINE_SPINLOCK(emc_lock);
static struct div_nmp pllxc_nmp = {
.divm_shift = 0,
@@ -1050,10 +1049,9 @@ static __init void tegra114_periph_clk_init(void __iomem *clk_base,
ARRAY_SIZE(mux_pllmcp_clkm),
CLK_SET_RATE_NO_REPARENT,
clk_base + CLK_SOURCE_EMC,
- 29, 3, 0, &emc_lock);
+ 29, 3, 0, NULL);
- clk = tegra_clk_register_mc("mc", "emc_mux", clk_base + CLK_SOURCE_EMC,
- &emc_lock);
+ clk = tegra_clk_register_mc("mc", "emc_mux", clk_base + CLK_SOURCE_EMC);
clks[TEGRA114_CLK_MC] = clk;
clk = tegra_clk_register_periph_gate("mipi-cal", "clk_m", 0, clk_base,
diff --git a/drivers/clk/tegra/clk-tegra124.c b/drivers/clk/tegra/clk-tegra124.c
index e931319dcc9d..0c956e14b9ca 100644
--- a/drivers/clk/tegra/clk-tegra124.c
+++ b/drivers/clk/tegra/clk-tegra124.c
@@ -126,7 +126,6 @@ static DEFINE_SPINLOCK(pll_d_lock);
static DEFINE_SPINLOCK(pll_e_lock);
static DEFINE_SPINLOCK(pll_re_lock);
static DEFINE_SPINLOCK(pll_u_lock);
-static DEFINE_SPINLOCK(emc_lock);
static DEFINE_SPINLOCK(sor0_lock);
/* possible OSC frequencies in Hz */
@@ -1050,8 +1049,7 @@ static __init void tegra124_periph_clk_init(void __iomem *clk_base,
periph_clk_enb_refcnt);
clks[TEGRA124_CLK_DSIB] = clk;
- clk = tegra_clk_register_mc("mc", "emc", clk_base + CLK_SOURCE_EMC,
- &emc_lock);
+ clk = tegra_clk_register_mc("mc", "emc", clk_base + CLK_SOURCE_EMC);
clks[TEGRA124_CLK_MC] = clk;
/* cml0 */
@@ -1518,8 +1516,7 @@ static void __init tegra124_132_clock_init_post(struct device_node *np)
tegra124_reset_deassert);
tegra_add_of_provider(np, of_clk_src_onecell_get);
- clks[TEGRA124_CLK_EMC] = tegra_clk_register_emc(clk_base, np,
- &emc_lock);
+ clks[TEGRA124_CLK_EMC] = tegra_clk_register_emc(clk_base, np, NULL);
tegra_register_devclks(devclks, ARRAY_SIZE(devclks));
diff --git a/drivers/clk/tegra/clk-tegra20.c b/drivers/clk/tegra/clk-tegra20.c
index 3efc651b42e3..2f8b6de4198f 100644
--- a/drivers/clk/tegra/clk-tegra20.c
+++ b/drivers/clk/tegra/clk-tegra20.c
@@ -802,8 +802,7 @@ static void __init tegra20_periph_clk_init(void)
clks[TEGRA20_CLK_EMC] = clk;
- clk = tegra_clk_register_mc("mc", "emc", clk_base + CLK_SOURCE_EMC,
- NULL);
+ clk = tegra_clk_register_mc("mc", "emc", clk_base + CLK_SOURCE_EMC);
clks[TEGRA20_CLK_MC] = clk;
/* dsi */
diff --git a/drivers/clk/tegra/clk-tegra30.c b/drivers/clk/tegra/clk-tegra30.c
index 37244a7e68c2..88e8c485f8ae 100644
--- a/drivers/clk/tegra/clk-tegra30.c
+++ b/drivers/clk/tegra/clk-tegra30.c
@@ -1042,8 +1042,7 @@ static void __init tegra30_periph_clk_init(void)
clks[TEGRA30_CLK_EMC] = clk;
- clk = tegra_clk_register_mc("mc", "emc", clk_base + CLK_SOURCE_EMC,
- NULL);
+ clk = tegra_clk_register_mc("mc", "emc", clk_base + CLK_SOURCE_EMC);
clks[TEGRA30_CLK_MC] = clk;
/* cml0 */
diff --git a/drivers/clk/tegra/clk.h b/drivers/clk/tegra/clk.h
index 6b565f6b5f66..5ed8b95d331c 100644
--- a/drivers/clk/tegra/clk.h
+++ b/drivers/clk/tegra/clk.h
@@ -136,7 +136,7 @@ struct clk *tegra_clk_register_divider(const char *name,
unsigned long flags, u8 clk_divider_flags, u8 shift, u8 width,
u8 frac_width, spinlock_t *lock);
struct clk *tegra_clk_register_mc(const char *name, const char *parent_name,
- void __iomem *reg, spinlock_t *lock);
+ void __iomem *reg);
/*
* Tegra PLL:
--
2.26.0
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