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Date: Thu, 15 Sep 2016 17:45:57 +0200
From: Arnd Bergmann <arnd@...db.de>
To: Michael Turquette <mturquette@...libre.com>,
Stephen Boyd <sboyd@...eaurora.org>
Cc: Arnd Bergmann <arnd@...db.de>, Jun Nie <jun.nie@...aro.org>,
linux-arm-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] clk: zx: fix pointer case warnings
The zx296718 clock driver has a creative way of assigning the register
values for each clock, by initializing an __iomem pointer to an
offset and then later adding the base (from ioremap) on top
with a cast to u64. This fail on all 32-bit architectures during
compile testing:
drivers/clk/zte/clk-zx296718.c: In function 'top_clocks_init':
drivers/clk/zte/clk-zx296718.c:554:35: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
zx296718_pll_clk[i].reg_base += (u64)reg_base;
drivers/clk/zte/clk-zx296718.c:579:29: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
drivers/clk/zte/clk-zx296718.c:592:31: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
It would be nice to avoid all the casts, but I decided to simply
shut up the warnings by changing the type from u64 to uintptr_t,
which does the right thing in practice.
Signed-off-by: Arnd Bergmann <arnd@...db.de>
Fixes: ca0233285a93 ("clk: zx: register ZX296718 clocks")
---
drivers/clk/zte/clk-zx296718.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/drivers/clk/zte/clk-zx296718.c b/drivers/clk/zte/clk-zx296718.c
index 025e324fab5c..b34402d0cd69 100644
--- a/drivers/clk/zte/clk-zx296718.c
+++ b/drivers/clk/zte/clk-zx296718.c
@@ -551,7 +551,7 @@ static int __init top_clocks_init(struct device_node *np)
}
for (i = 0; i < ARRAY_SIZE(zx296718_pll_clk); i++) {
- zx296718_pll_clk[i].reg_base += (u64)reg_base;
+ zx296718_pll_clk[i].reg_base += (uintptr_t)reg_base;
ret = clk_hw_register(NULL, &zx296718_pll_clk[i].hw);
if (ret) {
pr_warn("top clk %s init error!\n",
@@ -576,7 +576,7 @@ static int __init top_clocks_init(struct device_node *np)
top_hw_onecell_data.hws[top_mux_clk[i].id] =
&top_mux_clk[i].mux.hw;
- top_mux_clk[i].mux.reg += (u64)reg_base;
+ top_mux_clk[i].mux.reg += (uintptr_t)reg_base;
ret = clk_hw_register(NULL, &top_mux_clk[i].mux.hw);
if (ret) {
pr_warn("top clk %s init error!\n",
@@ -589,7 +589,7 @@ static int __init top_clocks_init(struct device_node *np)
top_hw_onecell_data.hws[top_gate_clk[i].id] =
&top_gate_clk[i].gate.hw;
- top_gate_clk[i].gate.reg += (u64)reg_base;
+ top_gate_clk[i].gate.reg += (uintptr_t)reg_base;
ret = clk_hw_register(NULL, &top_gate_clk[i].gate.hw);
if (ret) {
pr_warn("top clk %s init error!\n",
@@ -602,7 +602,7 @@ static int __init top_clocks_init(struct device_node *np)
top_hw_onecell_data.hws[top_div_clk[i].id] =
&top_div_clk[i].div.hw;
- top_div_clk[i].div.reg += (u64)reg_base;
+ top_div_clk[i].div.reg += (uintptr_t)reg_base;
ret = clk_hw_register(NULL, &top_div_clk[i].div.hw);
if (ret) {
pr_warn("top clk %s init error!\n",
@@ -742,7 +742,7 @@ static int __init lsp0_clocks_init(struct device_node *np)
lsp0_hw_onecell_data.hws[lsp0_mux_clk[i].id] =
&lsp0_mux_clk[i].mux.hw;
- lsp0_mux_clk[i].mux.reg += (u64)reg_base;
+ lsp0_mux_clk[i].mux.reg += (uintptr_t)reg_base;
ret = clk_hw_register(NULL, &lsp0_mux_clk[i].mux.hw);
if (ret) {
pr_warn("lsp0 clk %s init error!\n",
@@ -755,7 +755,7 @@ static int __init lsp0_clocks_init(struct device_node *np)
lsp0_hw_onecell_data.hws[lsp0_gate_clk[i].id] =
&lsp0_gate_clk[i].gate.hw;
- lsp0_gate_clk[i].gate.reg += (u64)reg_base;
+ lsp0_gate_clk[i].gate.reg += (uintptr_t)reg_base;
ret = clk_hw_register(NULL, &lsp0_gate_clk[i].gate.hw);
if (ret) {
pr_warn("lsp0 clk %s init error!\n",
@@ -768,7 +768,7 @@ static int __init lsp0_clocks_init(struct device_node *np)
lsp0_hw_onecell_data.hws[lsp0_div_clk[i].id] =
&lsp0_div_clk[i].div.hw;
- lsp0_div_clk[i].div.reg += (u64)reg_base;
+ lsp0_div_clk[i].div.reg += (uintptr_t)reg_base;
ret = clk_hw_register(NULL, &lsp0_div_clk[i].div.hw);
if (ret) {
pr_warn("lsp0 clk %s init error!\n",
@@ -847,7 +847,7 @@ static int __init lsp1_clocks_init(struct device_node *np)
lsp1_hw_onecell_data.hws[lsp1_mux_clk[i].id] =
&lsp0_mux_clk[i].mux.hw;
- lsp1_mux_clk[i].mux.reg += (u64)reg_base;
+ lsp1_mux_clk[i].mux.reg += (uintptr_t)reg_base;
ret = clk_hw_register(NULL, &lsp1_mux_clk[i].mux.hw);
if (ret) {
pr_warn("lsp1 clk %s init error!\n",
@@ -860,7 +860,7 @@ static int __init lsp1_clocks_init(struct device_node *np)
lsp1_hw_onecell_data.hws[lsp1_gate_clk[i].id] =
&lsp1_gate_clk[i].gate.hw;
- lsp1_gate_clk[i].gate.reg += (u64)reg_base;
+ lsp1_gate_clk[i].gate.reg += (uintptr_t)reg_base;
ret = clk_hw_register(NULL, &lsp1_gate_clk[i].gate.hw);
if (ret) {
pr_warn("lsp1 clk %s init error!\n",
@@ -873,7 +873,7 @@ static int __init lsp1_clocks_init(struct device_node *np)
lsp1_hw_onecell_data.hws[lsp1_div_clk[i].id] =
&lsp1_div_clk[i].div.hw;
- lsp1_div_clk[i].div.reg += (u64)reg_base;
+ lsp1_div_clk[i].div.reg += (uintptr_t)reg_base;
ret = clk_hw_register(NULL, &lsp1_div_clk[i].div.hw);
if (ret) {
pr_warn("lsp1 clk %s init error!\n",
--
2.9.0
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