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Message-ID: <202301081006.79iS3Dsj-lkp@intel.com>
Date: Sun, 8 Jan 2023 10:25:03 +0800
From: kernel test robot <lkp@...el.com>
To: William Zhang <william.zhang@...adcom.com>,
Linux SPI List <linux-spi@...r.kernel.org>,
Broadcom Kernel List <bcm-kernel-feedback-list@...adcom.com>
Cc: oe-kbuild-all@...ts.linux.dev, anand.gore@...adcom.com,
tomer.yacoby@...adcom.com, dan.beygelman@...adcom.com,
joel.peshkin@...adcom.com, f.fainelli@...il.com,
jonas.gorski@...il.com, kursad.oney@...adcom.com, dregan@...l.com,
William Zhang <william.zhang@...adcom.com>,
Mark Brown <broonie@...nel.org>,
Rafał Miłecki <rafal@...ecki.pl>,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 15/16] spi: bcmbca-hsspi: Add driver for newer HSSPI
controller
Hi William,
I love your patch! Perhaps something to improve:
[auto build test WARNING on robh/for-next]
[also build test WARNING on broonie-spi/for-next krzk/for-next krzk-dt/for-next krzk-mem-ctrl/for-next linus/master v6.2-rc2 next-20230106]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/William-Zhang/dt-bindings-spi-Convert-bcm63xx-hsspi-bindings-to-json-schema/20230107-042320
base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git for-next
patch link: https://lore.kernel.org/r/20230106200809.330769-16-william.zhang%40broadcom.com
patch subject: [PATCH 15/16] spi: bcmbca-hsspi: Add driver for newer HSSPI controller
config: sparc-randconfig-s051-20230108
compiler: sparc64-linux-gcc (GCC) 12.1.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://github.com/intel-lab-lkp/linux/commit/b4aa17674a91bffdc787dc83345cd2bce05e23a3
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review William-Zhang/dt-bindings-spi-Convert-bcm63xx-hsspi-bindings-to-json-schema/20230107-042320
git checkout b4aa17674a91bffdc787dc83345cd2bce05e23a3
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=sparc olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=sparc SHELL=/bin/bash drivers/spi/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>
sparse warnings: (new ones prefixed by >>)
>> drivers/spi/spi-bcmbca-hsspi.c:300:30: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned short [usertype] w @@ got restricted __be16 [usertype] @@
drivers/spi/spi-bcmbca-hsspi.c:300:30: sparse: expected unsigned short [usertype] w
drivers/spi/spi-bcmbca-hsspi.c:300:30: sparse: got restricted __be16 [usertype]
vim +300 drivers/spi/spi-bcmbca-hsspi.c
254
255 static int bcmbca_hsspi_do_txrx(struct spi_device *spi, struct spi_transfer *t,
256 struct spi_message *msg)
257 {
258 struct bcmbca_hsspi *bs = spi_master_get_devdata(spi->master);
259 unsigned int chip_select = spi->chip_select;
260 u16 opcode = 0;
261 int pending = t->len;
262 int step_size = HSSPI_BUFFER_LEN;
263 const u8 *tx = t->tx_buf;
264 u8 *rx = t->rx_buf;
265 u32 reg = 0, cs_act = 0;
266
267 bcmbca_hsspi_set_clk(bs, spi, t->speed_hz);
268
269 if (tx && rx)
270 opcode = HSSPI_OP_READ_WRITE;
271 else if (tx)
272 opcode = HSSPI_OP_WRITE;
273 else if (rx)
274 opcode = HSSPI_OP_READ;
275
276 if (opcode != HSSPI_OP_READ)
277 step_size -= HSSPI_OPCODE_LEN;
278
279 if ((opcode == HSSPI_OP_READ && t->rx_nbits == SPI_NBITS_DUAL) ||
280 (opcode == HSSPI_OP_WRITE && t->tx_nbits == SPI_NBITS_DUAL)) {
281 opcode |= HSSPI_OP_MULTIBIT;
282
283 if (t->rx_nbits == SPI_NBITS_DUAL)
284 reg |= 1 << MODE_CTRL_MULTIDATA_RD_SIZE_SHIFT;
285 if (t->tx_nbits == SPI_NBITS_DUAL)
286 reg |= 1 << MODE_CTRL_MULTIDATA_WR_SIZE_SHIFT;
287 }
288
289 __raw_writel(reg | 0xff,
290 bs->regs + HSSPI_PROFILE_MODE_CTRL_REG(chip_select));
291
292 while (pending > 0) {
293 int curr_step = min_t(int, step_size, pending);
294
295 reinit_completion(&bs->done);
296 if (tx) {
297 memcpy_toio(bs->fifo + HSSPI_OPCODE_LEN, tx, curr_step);
298 tx += curr_step;
299 }
> 300 __raw_writew(cpu_to_be16(opcode | curr_step), bs->fifo);
301
302 /* enable interrupt */
303 if (bs->irq > 0)
304 __raw_writel(HSSPI_PINGx_CMD_DONE(0),
305 bs->regs + HSSPI_INT_MASK_REG);
306
307 if (!cs_act) {
308 bcmbca_hsspi_set_cs(bs, chip_select, true);
309 cs_act = 1;
310 }
311 reg = chip_select << PINGPONG_CMD_SS_SHIFT |
312 chip_select << PINGPONG_CMD_PROFILE_SHIFT |
313 PINGPONG_COMMAND_START_NOW;
314 __raw_writel(reg, bs->regs + HSSPI_PINGPONG_COMMAND_REG(0));
315
316 if (bcmbca_hsspi_wait_cmd(bs, spi->chip_select))
317 return -ETIMEDOUT;
318
319 pending -= curr_step;
320 if (pending == 0) {
321 if (list_is_last(&t->transfer_list, &msg->transfers)) {
322 if (!t->cs_change)
323 bcmbca_hsspi_set_cs(bs, spi->chip_select, false);
324 } else {
325 if (t->cs_change) {
326 bcmbca_hsspi_set_cs(bs, spi->chip_select, false);
327 udelay(10);
328 bcmbca_hsspi_set_cs(bs, spi->chip_select, true);
329 }
330 }
331 }
332 if (rx) {
333 memcpy_fromio(rx, bs->fifo, curr_step);
334 rx += curr_step;
335 }
336 }
337
338 return 0;
339 }
340
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
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