On 3/10/22 1:44 PM, Takashi Iwai <tiwai@xxxxxxx> wrote:
On Tue, 08 Mar 2022 18:17:15 +0100, Lucas Tanure wrote: > +enum cs35l41_gpio_func { > + CS35L41_HIZ, > + CS35L41_GPIO, > + CS35L41_INT_OPEN_DRAIN_GPIO2, > + CS35L41_MCLK, > + CS35L41_INT_PUSH_PULL_LOW_GPIO2, > + CS35L41_INT_PUSH_PULL_HIGH_GPIO2, > + CS35L41_PDM_CLK_GPIO2, > + CS35L41_PDM_DATA_GPIO2, > + CS35L41_MDSYNC_GPIO1 = 2, > + CS35L41_PDM_CLK_GPIO1 = 4, > + CS35L41_PDM_DATA_GPIO1 = 5, > }; So CS35L41_MDSYNC_GPIO1 is identical with *_DRAIN_GPIO2, i.e. it's an alias? thanks, Takashi
The value 2 sets GPIO1 as MDSYNC pin and GPIO2 as IRQ pin (Open drain). It could be the same label, like CS35L41_GPIO1_MDSYNC_GPIO2_IRQ, but I think separating them is better for understanding the code and organizing the code.