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mmc: sdio: Extend sdio_config_attr macro and use it also for modalias
This simplify code for generating sdio config attributes and allows easily define new sdio attributes. Signed-off-by: Pali Rohár <pali@kernel.org> Link: https://lore.kernel.org/r/20200727133837.19086-4-pali@kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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@ -28,29 +28,21 @@
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#define to_sdio_driver(d) container_of(d, struct sdio_driver, drv)
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/* show configuration fields */
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#define sdio_config_attr(field, format_string) \
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#define sdio_config_attr(field, format_string, args...) \
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static ssize_t \
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field##_show(struct device *dev, struct device_attribute *attr, char *buf) \
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{ \
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struct sdio_func *func; \
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\
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func = dev_to_sdio_func (dev); \
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return sprintf (buf, format_string, func->field); \
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return sprintf(buf, format_string, args); \
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} \
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static DEVICE_ATTR_RO(field)
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sdio_config_attr(class, "0x%02x\n");
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sdio_config_attr(vendor, "0x%04x\n");
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sdio_config_attr(device, "0x%04x\n");
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static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
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{
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struct sdio_func *func = dev_to_sdio_func (dev);
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return sprintf(buf, "sdio:c%02Xv%04Xd%04X\n",
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func->class, func->vendor, func->device);
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}
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static DEVICE_ATTR_RO(modalias);
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sdio_config_attr(class, "0x%02x\n", func->class);
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sdio_config_attr(vendor, "0x%04x\n", func->vendor);
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sdio_config_attr(device, "0x%04x\n", func->device);
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sdio_config_attr(modalias, "sdio:c%02Xv%04Xd%04X\n", func->class, func->vendor, func->device);
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static struct attribute *sdio_dev_attrs[] = {
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&dev_attr_class.attr,
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