wifi: rtw89: txpwr: concentrate channel related control to top
For future support on multiple channels, it would be disturbing if we still allow scattered leaf functions of TX power to query and manage channel related control by themselves. So, query rtw89_chan only on top functions. Then, pass it via functions to make sure that the values coming from the same struct rtw89_chan. Besides, fix rtw8852a_set_txpwr_offset() from rtw8852a_set_txpwr_ctrl() to rtw8852a_set_txpwr(). TX power offset should consider current band, so move it to chip_ops::set_txpwr() which will be called every time that channel is set. Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220809104952.61355-6-pkshih@realtek.com
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