pwmchip_supports_waveform
if (!pwmchip_supports_waveform(chip))
if (pwmchip_supports_waveform(chip)) {
if (!pwmchip_supports_waveform(chip) || !ops->read_waveform)
if (!pwmchip_supports_waveform(chip))
if (pwmchip_supports_waveform(chip)) {
if (pwmchip_supports_waveform(chip) && ops->read_waveform) {