Re: [PATCH v4 2/2] spi: cadence-quadpsi: Add support for the Cadence QSPI controller

From: kbuild test robot
Date: Wed Dec 25 2019 - 09:50:16 EST

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Hi "Ramuthevar,Vadivel,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on spi/for-next]
[also build test WARNING on v5.5-rc3 next-20191220]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url: https://github.com/0day-ci/linux/commits/Ramuthevar-Vadivel-MuruganX/spi-cadence-quadpsi-Add-support-for-the-Cadence-QSPI-controller/20191225-040310
base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next
reproduce:
# apt-get install sparse
# sparse version: v0.6.1-129-g341daf20-dirty
make ARCH=x86_64 allmodconfig
make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

sparse warnings: (new ones prefixed by >>)

>> drivers/spi/spi-cadence-quadspi.c:133:30: sparse: sparse: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:133:30: sparse: expected void const volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:133:30: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:139:30: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:139:30: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:139:30: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:146:30: sparse: sparse: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:146:30: sparse: expected void const volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:146:30: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:152:30: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:152:30: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:152:30: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:161:30: sparse: sparse: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:161:30: sparse: expected void const volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:161:30: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:171:30: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:171:30: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:171:30: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:183:30: sparse: sparse: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:183:30: sparse: expected void const volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:183:30: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:186:30: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:186:30: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:186:30: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:195:30: sparse: sparse: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:195:30: sparse: expected void const volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:195:30: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:214:30: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:214:30: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:214:30: sparse: got void *
>> drivers/spi/spi-cadence-quadspi.c:383:31: sparse: sparse: incorrect type in initializer (different address spaces)
drivers/spi/spi-cadence-quadspi.c:383:31: sparse: expected void *reg_base
drivers/spi/spi-cadence-quadspi.c:383:31: sparse: got void [noderef] <asn:2> *iobase
drivers/spi/spi-cadence-quadspi.c:384:31: sparse: sparse: incorrect type in initializer (different address spaces)
drivers/spi/spi-cadence-quadspi.c:384:31: sparse: expected void *ahb_base
drivers/spi/spi-cadence-quadspi.c:384:31: sparse: got void [noderef] <asn:2> *qspi_ahb_virt
drivers/spi/spi-cadence-quadspi.c:393:36: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:393:36: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:393:36: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:398:25: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:398:25: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:398:25: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:400:48: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:400:48: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:400:48: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:401:44: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:401:44: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:401:44: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:405:25: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:405:25: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:405:25: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:413:33: sparse: sparse: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:413:33: sparse: expected void const volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:413:33: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:423:46: sparse: sparse: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:423:46: sparse: expected void [noderef] <asn:2> *port
drivers/spi/spi-cadence-quadspi.c:423:46: sparse: got void *ahb_base
drivers/spi/spi-cadence-quadspi.c:426:62: sparse: sparse: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:426:62: sparse: expected void [noderef] <asn:2> *
drivers/spi/spi-cadence-quadspi.c:426:62: sparse: got void *ahb_base
drivers/spi/spi-cadence-quadspi.c:435:41: sparse: sparse: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:435:41: sparse: expected void const volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:435:41: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:443:43: sparse: sparse: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:443:43: sparse: expected void [noderef] <asn:2> *reg
drivers/spi/spi-cadence-quadspi.c:443:43: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:452:28: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:452:28: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:452:28: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:454:57: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:454:57: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:454:57: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:459:28: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:459:28: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:459:28: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:462:25: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:462:25: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:462:25: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:519:31: sparse: sparse: incorrect type in initializer (different address spaces)
drivers/spi/spi-cadence-quadspi.c:519:31: sparse: expected void *reg_base
drivers/spi/spi-cadence-quadspi.c:519:31: sparse: got void [noderef] <asn:2> *iobase
drivers/spi/spi-cadence-quadspi.c:520:31: sparse: sparse: incorrect type in initializer (different address spaces)
drivers/spi/spi-cadence-quadspi.c:520:31: sparse: expected void *ahb_base
drivers/spi/spi-cadence-quadspi.c:520:31: sparse: got void [noderef] <asn:2> *qspi_ahb_virt
drivers/spi/spi-cadence-quadspi.c:527:30: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:527:30: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:527:30: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:528:30: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:528:30: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:528:30: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:529:30: sparse: sparse: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:529:30: sparse: expected void const volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:529:30: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:534:30: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:534:30: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:534:30: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:536:36: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:536:36: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:536:36: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:537:54: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:537:54: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:537:54: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:539:48: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:539:48: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:539:48: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:540:44: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:540:44: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:540:44: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:543:25: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:543:25: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:543:25: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:557:39: sparse: sparse: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:557:39: sparse: expected void [noderef] <asn:2> *port
drivers/spi/spi-cadence-quadspi.c:557:39: sparse: got void *ahb_base
drivers/spi/spi-cadence-quadspi.c:564:41: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:564:41: sparse: expected void [noderef] <asn:2> *
drivers/spi/spi-cadence-quadspi.c:564:41: sparse: got void *ahb_base
drivers/spi/spi-cadence-quadspi.c:579:43: sparse: sparse: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:579:43: sparse: expected void [noderef] <asn:2> *reg
drivers/spi/spi-cadence-quadspi.c:579:43: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:590:28: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:590:28: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:590:28: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:592:57: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:592:57: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:592:57: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:597:33: sparse: sparse: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:597:33: sparse: expected void volatile [noderef] <asn:2> *addr
drivers/spi/spi-cadence-quadspi.c:597:33: sparse: got void *
drivers/spi/spi-cadence-quadspi.c:607:38: sparse: sparse: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-cadence-quadspi.c:607:38: sparse: expected void *reg_base

vim +133 drivers/spi/spi-cadence-quadspi.c

128
129 static void cqspi_direct_access_enable(void *reg_base, bool enable)
130 {
131 u32 reg;
132
> 133 reg = readl(reg_base + CQSPI_REG_CONFIG);
134 if (enable)
135 reg |= CQSPI_REG_CONFIG_DIRECT_MASK;
136 else
137 reg &= ~CQSPI_REG_CONFIG_DIRECT_MASK;
138
139 writel(reg, reg_base + CQSPI_REG_CONFIG);
140 }
141
142 static void cqspi_controller_enable(void *reg_base, bool enable)
143 {
144 unsigned int reg;
145
146 reg = readl(reg_base + CQSPI_REG_CONFIG);
147 if (enable)
148 reg |= CQSPI_REG_CONFIG_ENABLE_MASK;
149 else
150 reg &= ~CQSPI_REG_CONFIG_ENABLE_MASK;
151
152 writel(reg, reg_base + CQSPI_REG_CONFIG);
153 }
154
155 static void cqspi_readdata_capture(void *reg_base, u32 bypass, u32 delay)
156 {
157 unsigned int reg;
158
159 cqspi_controller_enable(reg_base, 0);
160
161 reg = readl(reg_base + CQSPI_REG_READCAPTURE);
162 if (bypass)
163 reg |= (1 << CQSPI_REG_READCAPTURE_BYPASS_LSB);
164 else
165 reg &= ~(1 << CQSPI_REG_READCAPTURE_BYPASS_LSB);
166
167 reg &= ~(CQSPI_REG_READCAPTURE_DELAY_MASK
168 << CQSPI_REG_READCAPTURE_DELAY_LSB);
169 reg |= ((delay & CQSPI_REG_READCAPTURE_DELAY_MASK)
170 << CQSPI_REG_READCAPTURE_DELAY_LSB);
171 writel(reg, reg_base + CQSPI_REG_READCAPTURE);
172
173 cqspi_controller_enable(reg_base, 1);
174 }
175
176 static void cqspi_config_baudrate_div(void *reg_base, u32 ref_clk_hz, u32 sclk)
177 {
178 unsigned int reg, div;
179
180 /* Recalculate the baudrate divisor based on QSPI specification. */
181 div = DIV_ROUND_UP(ref_clk_hz, 2 * sclk) - 1;
182
183 reg = readl(reg_base + CQSPI_REG_CONFIG);
184 reg &= ~(CQSPI_REG_CONFIG_BAUD_MASK << CQSPI_REG_CONFIG_BAUD_LSB);
185 div = (div & CQSPI_REG_CONFIG_BAUD_MASK) << CQSPI_REG_CONFIG_BAUD_LSB;
> 186 writel(reg, reg_base + CQSPI_REG_CONFIG);
187 }
188

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